Coast Guard, Dept. of Homeland Security Pt. 69

(4) The majority of the aggregate rev- 69.53 Definitions. enues of at least one of the following is 69.55 Application for measurement services. derived from the operation or manage- 69.57 Gross tonnage ITC. 69.59 Enclosed spaces. ment of vessels: 69.61 Excluded spaces. (i) The person that owns the vessel. 69.63 Net tonnage ITC. (ii) The parent of the person that 69.65 Calculation of volumes. owns the vessel. 69.67 Marking of cargo spaces. (iii) The group of which the person 69.69 Tonnage certificates. that owns the vessel is a member; or 69.71 Change of net tonnage. (5) At least one of the following is 69.73 Treatment of novel type vessels. primarily engaged in the operation or 69.75 Figures. management of commercial, foreign- Subpart C—Standard Regulatory flag vessels used for the carriage of Measurement System cargo for parties unrelated to the ves- sel’s owner or charterer: 69.101 Purpose. (i) The person that owns the vessel. 69.103 Definitions. (ii) The parent of the person that 69.105 Application for measurement serv- owns the vessel. ices. (iii) The group of which the person 69.107 Gross and net register tonnage. 69.108 Uppermost complete deck. that owns the vessel is a member. 69.109 Under-deck tonnage. (c) When the coastwise endorsement 69.111 Between-deck tonnage. for a vessel to which this subpart ap- 69.113 Superstructure tonnage. plies becomes invalid under paragraph 69.115 Excess hatchway tonnage. (a)(1) or (b)(1) of this section, the vessel 69.117 Spaces exempt from inclusion in ton- remains eligible for documentation nage. under this subpart provided it is a ves- 69.119 Spaces deducted from tonnage. 69.121 Engine room deduction. sel to which § 68.100(b) or (c) applies. 69.123 Figures. PART 69—MEASUREMENT OF Subpart D —Dual Regulatory VESSELS Measurements System 69.151 Purpose. Subpart A—General 69.153 Application of other laws. Sec. 69.155 Measurement requirements. 69.1 Purpose. 69.157 Definitions. 69.3 Applicability. 69.159 Application for measurement serv- 69.5 [Reserved] ices. 69.7 Vessels transiting the Panama and 69.161 Gross and net register tonnages. Suez Canals. 69.163 Under-deck tonnage. 69.9 Definitions. 69.165 Between-deck tonnage. 69.11 Determining the measurement system 69.167 Superstructure tonnage. or systems for a particular vessel. 69.169 Spaces exempt from inclusion in ton- 69.13 Applying provisions of a measurement nage. system. 69.171 When the tonnage mark is considered 69.15 Authorized measurement organiza- submerged. tions. 69.173 Register Tonnage assignments for 69.17 Application for measurement services. vessels with only one deck. 69.19 Remeasurement. 69.175 Tonnage assignments for vessels with 69.20 Applying tonnage thresholds. a second deck. 69.21 Right of appeal. 69.177 Markings. 69.23 Fees. 69.179 Certification of markings. 69.25 Penalties. 69.181 Locating the line of the second deck. 69.27 Delegation of authority to measure 69.183 Figures. vessels. 69.28 Acceptance of measurement by a for- Subpart E—Simplified Regulatory eign country. Measurement System 69.29 OMB control numbers assigned under the Paperwork Reduction Act. 69.201 Purpose. 69.203 Definitions. Subpart B—Convention Measurement 69.205 Application for measurement serv- System ices. 69.207 Measurements. 69.51 Purpose. 69.209 Gross and net register tonnages.

385

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00395 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.1 46 CFR Ch. I (10–1–20 Edition)

69.211 Treatment of novel type vessels. Commandant means Commandant of AUTHORITY: 46 U.S.C. 2301, 14103, 14104; De- the Coast Guard at the following ad- partment of Homeland Security Delegation dress: Commanding Officer, Marine No. 0170.1. Safety Center (MSC–4), U.S. Coast SOURCE: CGD 87–015b, 54 FR 37657, Sept. 12, Guard Stop 7430, 2703 Martin Luther 1989, unless otherwise noted. King Jr. Ave. SE., Washington, DC 20593–7430. Subpart A—General Convention means the International Convention on Tonnage Measurement § 69.1 Purpose. of Ships, 1969. This part implements legislation Convention Measurement System means concerning the measurement of vessels the measurement system under subpart to determine their tonnage (part J of 46 B of this part, which is based on the U.S.C. subtitle II). Tonnage is used for rules of the Convention. This Formal a variety of purposes, including the ap- Measurement System uses the vessel’s plication of vessel safety, security, and total enclosed volume as the principal environmental protection regulations input for tonnage calculations along and the assessment of taxes and fees. with other characteristics related to This part indicates the particular the vessel’s carrying capacity, includ- measurement system or systems under ing the volume of cargo spaces and which the vessel is required or eligible number of passengers. Tonnages as- to be measured, describes the measure- signed under this system are expressed ment rules and procedures for each sys- in terms of gross tonnage ITC (GT ITC) tem, identifies the organizations au- or net tonnage ITC (NT ITC). thorized to measure vessels under this Deck cargo means freight carried on part, and provides for the appeal of the weather decks of a vessel for the measurement organizations’ decisions. purpose of its transport between two separate and distinct locations, and [USCG–2011–0522, 81 FR 18717, Mar. 31, 2016] which is off-loaded from the vessel in § 69.3 Applicability. its original container (if applicable) without undergoing any processing or This part applies to any vessel for other use while onboard the vessel. which the application of an inter- Dual Regulatory Measurement System national agreement or other law of the means the measurement system under United States to the vessel depends on subpart D of this part, which is one of the vessel’s tonnage. three sub-systems of the Regulatory [USCG–2011–0522, 81 FR 18718, Mar. 31, 2016] Measurement System. This Formal Measurement System is based on the § 69.5 [Reserved] rules of the Standard Regulatory Meas- urement System, with adjustments § 69.7 Vessels transiting the Panama and Suez Canals. that allow for the assignment of two sets of Regulatory Measurement Sys- For vessels that will transit the Pan- tem tonnages whose use depends on the ama Canal and/or Suez Canal, the re- loading condition of the vessel. Ton- spective canal authorities may require nages assigned under this system are special tonnage certificates in addition expressed in terms of gross register to those issued under this part. These tons (GRT) or net register tons (NRT). special certificates may be issued by Foreign flag vessel means a vessel that measurement organizations who have is not a U.S. flag vessel. received appropriate authorization from the respective canal authorities. Formal Measurement System means a measurement system that employs a [USCG–2011–0522, 81 FR 18718, Mar. 31, 2016] detailed computational method using measurements of the entire vessel, and § 69.9 Definitions. which also takes into account the use As used in this part: of vessel spaces. The measurement sys- Authorized measurement organization tems prescribed under subparts B, C, means an entity that is authorized to and D of this part are Formal Measure- measure vessels under this part. ment Systems.

386

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00396 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.9

Great Lakes means the Great Lakes of the national measurement system of North America and the St. Lawrence the United States. Tonnages assigned River west of a rhumb line drawn from under this system are expressed in Cap des Rosiers to West Point, Anti- terms of gross register tons (GRT) or costi Island, and, on the north side of net register tons (NRT). Anticosti Island, the meridian of lon- Remeasurement means the process by gitude 63 degrees west. which tonnages or registered dimen- Gross register tonnage (GRT) means sions of a vessel that was previously the gross tonnage measurement of the measured are assigned or reassigned to vessel under the Regulatory Measure- that vessel, or are verified to be cor- ment System. Refer to § 69.20 for infor- rect, as appropriate. This includes as- mation on applying tonnage thresholds signment of tonnages or registered di- expressed in terms of gross register mensions under a different measure- tons (also referred to as GRT). ment system. Gross tonnage ITC (GT ITC) means the Self-propelled vessel means a vessel gross tonnage measurement of the ves- with a means of self-propulsion, includ- sel under the Convention Measurement ing sails. System. In international conventions, Simplified Regulatory Measurement this parameter may be referred to as System means the measurement system ‘‘gross tonnage (GT).’’ Refer to § 69.20 under subpart E of this part, which is for information on applying tonnage one of three sub-systems of the Regu- thresholds expressed in terms of gross latory Measurement System. It is tonnage ITC. based on the rules of the Standard Reg- National Vessel Documentation Center ulatory Measurement System but em- means the organizational unit des- ploys a simplified computational meth- ignated by the Commandant to process od using hull dimensions as the prin- vessel documentation transactions and cipal inputs. Tonnages assigned under maintain vessel documentation this system are expressed in terms of records. gross register tons (GRT) or net reg- Net register tonnage (NRT) means the ister tons (NRT). net tonnage measurement of the vessel Standard Regulatory Measurement Sys- under the Regulatory Measurement tem means the measurement system System. Refer to § 69.20 for information under subpart C of this part, which is on applying tonnage thresholds ex- one of three sub-systems of the Regu- pressed in terms of net register tons. latory Measurement System. This For- Non-self-propelled vessel means a ves- mal Measurement System is based on sel that is not a self-propelled vessel. the rules of the British Merchant Ship- Overall length means the horizontal ping Act of 1854 and uses volumes of in- distance of the vessel’s hull between ternal spaces as the principal inputs the foremost part of a vessel’s stem to for tonnage calculations, allowing for the aftermost part of its stern, exclud- exemptions or deductions of qualifying ing fittings and attachments. spaces according to their location and Portable enclosed space means an en- use. Tonnages assigned under this sys- closed space that is not deck cargo, and tem are expressed in terms of gross whose method of attachment to the register tons (GRT) or net register tons vessel is not permanent in nature. Ex- (NRT). amples of portable enclosed spaces in- Tonnage means the volume of a ves- clude modular living quarters, housed sel’s spaces, including portable en- portable machinery spaces, and deck closed spaces, as calculated under a tanks used in support of shipboard in- measurement system in this part, and dustrial processes. is categorized as either gross or net. Register ton means a unit of volume Gross tonnage refers to the volumetric equal to 100 cubic feet. measure of the overall size of a vessel. Regulatory Measurement System means Net tonnage refers to the volumetric the measurement system that com- measure of the useful capacity of the prises subparts C, D, and E of this part vessel. Deck cargo is not included in (Standard, Dual, and Simplified Regu- tonnage. latory Measurement Systems, respec- Tonnage threshold means a tively), and is sometimes referred to as delimitating tonnage value specified in

387

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00397 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.11 46 CFR Ch. I (10–1–20 Edition)

an international convention or a Fed- Commandant finds substantially af- eral statute or regulation. fects the gross tonnage. U.S. flag vessel means a vessel of (v) A non-self-propelled U.S. flag ves- United States registry or nationality, sel (except a non-self-propelled vessel or one operated under the authority of that engages on a foreign voyage), un- the United States. less the vessel owner requests the ap- Vessel of war means ’’vessel of war’’ plication. as defined in 46 U.S.C. 2101. (b) Standard Regulatory Measurement Vessel that engages on a foreign voyage System (subpart C of this part). This For- means a vessel: mal Measurement System applies to a (1) That arrives at a place under the vessel not measured under the Conven- jurisdiction of the United States from tion Measurement System for which a place in a foreign country; the application of an international (2) That makes a voyage between agreement or other law of the United places outside of the United States; States to the vessel depends on the ves- (3) That departs from a place under sel’s tonnage. Upon request of the ves- the jurisdiction of the United States sel owner, this system also applies to a for a place in a foreign country; or U.S. flag vessel that is also measured (4) That makes a voyage between a under the Convention Measurement place within a territory or possession System. of the United States and another place (c) Dual Regulatory Measurement Sys- under the jurisdiction of the United tem (subpart D of this part). This Formal States not within that territory or pos- Measurement System may be applied, session. at the vessel owner’s option, instead of the Standard Regulatory Measurement [USCG–2011–0522, 81 FR 18718, Mar. 31, 2016] System. (d) Simplified Regulatory Measurement § 69.11 Determining the measurement system or systems for a particular System (subpart E of this part). This sys- vessel. tem may be applied, at the vessel own- er’s option, instead of the Standard (a) Convention Measurement System Regulatory Measurement System to (subpart B of this part). (1) Except as the following vessels: otherwise provided in this section, this (1) A vessel that is under 79 feet in Formal Measurement System applies overall length. to any vessel for which the application (2) A vessel of any length that is non- of an international agreement or other self-propelled. law of the United States to the vessel (3) A vessel of any length that is op- depends on the vessel’s tonnage. erated only for pleasure. (2) This system does not apply to the following vessels: [USCG–2011–0522, 81 FR 18719, Mar. 31, 2016] (i) A vessel of war, unless the govern- ment of the country to which the ves- § 69.13 Applying provisions of a meas- sel belongs elects to measure the vessel urement system. under this part. (a) Except as noted under paragraph (ii) A vessel of less than 79 feet in (c) of this section, all provisions of a overall length. measurement system as prescribed in (iii) A U.S. flag vessel, or one of Ca- this part that are applicable to the ves- nadian registry or nationality, or oper- sel must be observed. Coast Guard in- ated under the authority of Canada, terpretations of these provisions are and that is operating only on the Great published by, and may be obtained Lakes, unless the vessel owner re- from, Commanding Officer, Marine quests. Safety Center (MSC–4). (iv) A U.S. flag vessel (except a vessel (b) The provisions of more than one that engages on a foreign voyage), the measurement system must not be ap- keel of which was laid or was at a simi- plied interchangeably or combined, ex- lar stage of construction before Janu- cept where specifically authorized ary 1, 1986, unless the vessel owner re- under this part. quests or unless the vessel subse- (c) Unless otherwise provided for by quently undergoes a change that the law, the tonnage measurement rules

388

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00398 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.19

and procedures that immediately pre- organization as evidence of the vessel’s date the rules and procedures pre- measurement under this part. scribed in this part may be applied, at [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as the option of the vessel owner, to the amended by CGD 92–058, 57 FR 59938, Dec. 17, following vessels: 1992; CGD 92–053, 59 FR 50508, Oct. 4, 1994; (1) A vessel which has not been meas- CGD 95–014, 60 FR 31606, June 15, 1995; CGD ured and which was contracted for on 97–057, 62 FR 51045, Sept. 30, 1997; USCG–2007– 29018, 72 FR 53965, Sept. 21, 2007; USCG–2009– or before May 2, 2016. 0702, 74 FR 49230, Sept. 25, 2009; USCG–2013– (2) A vessel which has been measured, 0671, 78 FR 60149, Sept. 30, 2013; USCG–2011– but which has undergone modifications 0522, 81 FR 18719, Mar. 31, 2016; USCG–2016– contracted for on or before May 2, 2016. 0498, 82 FR 35091, July 28, 2017] [USCG–2011–0522, 81 FR 18719, Mar. 31, 2016] § 69.17 Application for measurement services. § 69.15 Authorized measurement orga- (a) The vessel owner is responsible nizations. for having the vessel measured or re- (a) Except as noted under paragraphs measured under this part. Applications (c) and (d) of this section, measurement for Formal Measurement may be ob- or remeasurement of all vessels under tained from any measurement organi- the Convention Measurement System zation and, once completed, are sub- and Standard and Dual Regulatory mitted to the authorized measurement Measurement Systems must be per- organization that will perform the formed by an authorized measurement measurement services. Applications for Simplified Measurement may be ob- organization meeting the requirements tained from the Commanding Officer, of § 69.27. A current listing of author- Marine Safety Center (MSC–4) and, ized measurement organizations may once completed, are submitted or re- be obtained from the Commanding Offi- tained as described in § 69.205. The con- cer, Marine Safety Center (MSC–4), tents of the application are described U.S. Coast Guard, 2703 Martin Luther in this part under the requirements for King Jr. Avenue SE., Washington, DC each system. 20593 or by writing to Commanding Of- (b) Applications for measurement ficer (MSC), Attn: Marine Safety Cen- under more than one system may be ter, U.S. Coast Guard Stop 7430, 2703 combined. Martin Luther King Jr. Avenue SE., (c) For vessels under construction, Washington, DC 20593–7430. the application should be submitted be- (b) Measurement or remeasurement fore the vessel is advanced in construc- of all vessels under subpart E of this tion. Usually, this means as soon as the part must be performed by the Coast decks are laid, holds cleared of encum- Guard. brances, engines installed, and accom- modations partitioned. (c) Measurement or remeasurement of all U.S. Coast Guard vessels and all [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as U.S. Navy vessels of war must be per- amended by CGD 97–057, 62 FR 51045, Sept. 30, formed by the Coast Guard. 1997; USCG–2011–0522, 81 FR 18719, Mar. 31, 2016] (d) At the option of the Commandant, the Coast Guard may measure any ves- § 69.19 Remeasurement. sel under this part. (a) If a vessel that is already meas- (e) The appropriate tonnage certifi- ured is to undergo a structural alter- cate, as provided for under this part, is ation, a change to its service, or if the issued by the authorized measurement use of its space is to be changed, a re- measurement may be required. For ves- sels measured under a Formal Measure- ment System, owners must report im- mediately to an authorized measure- ment organization any intent to struc- turally alter the vessel or to change its service or the use of its space. The measurement organization advises the

389

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00399 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.20 46 CFR Ch. I (10–1–20 Edition)

owner if remeasurement is necessary. Similarly, in general, and except as For all other vessels, owners must re- under paragraphs (b) and (c) of this sec- port the intent to structurally alter tion, tonnage thresholds expressed in the vessel to Commanding Officer, Ma- terms of ‘‘net tonnage,’’ ‘‘net tonnage rine Safety Center (MSC–4), for a re- ITC,’’ or ‘‘NT ITC’’ are applied using measurement determination. Re- Convention Measurement System ton- measurement is initiated by com- nage (if assigned) and thresholds ex- pleting and submitting, where applica- pressed in terms of ‘‘net tons,’’ ‘‘reg- ble, the appropriate application for istered net tons,’’ or ‘‘NRT’’ are ap- measurement services. Spaces not af- plied using the Regulatory Measure- fected by the alteration or change need ment System tonnage (if assigned). not be remeasured. (b) Thresholds found in international (b) Remeasurement must also be per- conventions. Unless otherwise provided formed as follows: for by law, apply tonnage thresholds in (1) When there is a perceived error in international conventions as follows: the application of this part, the vessel (1) For vessels measured under the owner should contact the responsible Convention Measurement System, measurement organization, or Com- apply all tonnage thresholds using Con- manding Officer, Marine Safety Center vention Measurement System tonnage, (MSC–4), as appropriate. Remeasure- except as provided for under the fol- ment is performed to the extent nec- lowing international tonnage essary to verify and correct the error. grandfathering provisions, which may (2) At the vessel owner’s option, to be applied at the option of the vessel reflect the latest tonnage measurement owner: rules and associated interpretations (i) Under Article 3(2)(d) of the Conven- under this part. tion: (c) For vessels measured under a For- (A) For a U.S. flag vessel, this Article mal Measurement System, if a re- allows associated tonnage thresholds in measurement or adjustment of tonnage effect on or before July 18, 1994 to be is required, the authorized measure- applied, at the vessel owner’s option, ment organization will issue a new ton- using Regulatory Measurement System nage certificate. For all other vessels, tonnage to a vessel whose keel was laid Commanding Officer, Marine Safety on or before July 18, 1982, and which did Center (MSC–4) will take action, as ap- not subsequently undergo alterations propriate. resulting in a change in its tonnage of (d) A vessel of less than 79 feet in a magnitude deemed by the Com- overall length measured under a For- mandant to constitute a substantial mal Measurement System may be re- variation in its tonnage. measured at the owner’s request under (B) For a foreign flag vessel, this Ar- the Simplified Regulatory Measure- ticle allows associated tonnage thresh- ment System. olds in effect on or before July 18, 1994, [USCG–2011–0522, 81 FR 18719, Mar. 31, 2016] to be applied, at the vessel owner’s op- tion, using the foreign country’s na- § 69.20 Applying tonnage thresholds. tional measurement system tonnage to (a) General. Tonnage thresholds are a vessel whose keel was laid on or be- applied using the vessel’s tonnage as- fore July 18, 1982, and which did not signed under this part, and as provided subsequently undergo alterations re- for by paragraphs (b) through (d) of sulting in a change in its tonnage of a this section. In general, and except as magnitude deemed by that country to under paragraphs (b) and (c) of this sec- constitute a substantial variation in tion, tonnage thresholds expressed in its tonnage. terms of ‘‘gross tonnage,’’ ‘‘gross ton- (ii) Under International Maritime Or- nage ITC,’’ or ‘‘GT ITC’’ are applied ganization (IMO) Resolutions A.494 (XII) using Convention Measurement System of November 19, 1981 and A.541 (XIII) of tonnage (if assigned) and thresholds ex- November 17, 1983: pressed in terms of ‘‘gross tons,’’ ‘‘reg- (A) For a U.S. flag vessel, these reso- istered gross tons,’’ or ‘‘GRT’’ are ap- lutions allow tonnage thresholds in ef- plied using the Regulatory Measure- fect on July 18, 1994 to be applied using ment System tonnage (if assigned). the gross register tonnage (Regulatory

390

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00400 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.25

Measurement System), to a vessel thresholds for Federal regulations that whose keel was laid on or after July 18, currently specify thresholds that were 1982 but before July 19, 1994, and which based on the Regulatory Measurement did not subsequently undergo alter- System, where appropriate. ations resulting in a change substan- (1) If an alternate tonnage threshold tially affecting its tonnage as deemed is prescribed or authorized by Federal by the Commandant. statute or regulation, apply the alter- (B) For a foreign flag vessel, these nate tonnage threshold using the Con- resolutions allow tonnage thresholds in vention Measurement System tonnage. effect on July 18, 1994 to be applied, at (2) A vessel regulated under para- the vessel owner’s option, using the graph (d) of this section must not be foreign country’s national measure- ment system tonnage, to a vessel measured under the Regulatory Meas- whose keel was laid on or after July 18, urement System. 1982, but on or before July 18, 1994, and [USCG–2011–0522, 81 FR 18720, Mar. 31, 2016] which did not undergo alterations after July 18, 1994 of a magnitude deemed by § 69.21 Right of appeal. that country to constitute a substan- Any person directly affected by a de- tial variation in its tonnage subject to cision or action taken under this part, the provisions of these resolutions. by or on behalf of the Coast Guard, (iii) Any other international grandfathering provisions as author- may appeal therefrom in accordance ized under appropriate International with subpart 1.03 of this chapter. Maritime Organization instruments to [CGD 88–033, 54 FR 50380, Dec. 6, 1989] which the United States is a party, or which are otherwise recognized or ac- § 69.23 Fees. cepted by the United States. Measurement organizations are au- (2) For all other vessels, apply all thorized to charge a fee for measure- tonnage thresholds using Regulatory ment services. Information on fees is Measurement System tonnage. (c) Thresholds found in Federal statutes available directly from the organiza- and regulations. Unless otherwise pro- tions. vided for by law, apply tonnage thresh- [CGD 97–057, 62 FR 51045, Sept. 30, 1997] olds in Federal statutes and regula- tions as follows: § 69.25 Penalties. (1) For vessels measured under the (a) General violation. The vessel Convention Measurement System only, owner, charterer, managing operator, apply all thresholds using Convention agent, master, and individual in charge Measurement System tonnage. (2) For vessels measured under the of a vessel in violation of a regulation Regulatory Measurement System only, in this part are each liable to the apply all thresholds using Regulatory United States Government for a civil Measurement System tonnage. penalty of not more than $30,000. Each (3) For all other vessels, apply day of a continuing violation is a sepa- thresholds in effect before July 19, 1994 rate violation. The vessel also is liable using the vessel’s Regulatory Measure- in rem for the penalty. ment System tonnage, and all other (b) False Statements. A person know- thresholds using the vessel’s Conven- ingly making a false statement or rep- tion Measurement System tonnage. resentation in a matter in which a (d) Alternate tonnage thresholds. 46 statement or representation is required U.S.C. 14104 authorizes the Coast Guard by this part is liable to the United to establish tonnage thresholds based States Government for a civil penalty on the Convention Measurement Sys- of not more than $30,000 for each false tem as an alternative to tonnage statement or representation. The ves- thresholds based on the Regulatory sel also is liable in rem for the penalty. Measurement System. Although 46 U.S.C. 14104 addresses only thresholds [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as in Federal statutes, it does not pre- amended by USCG–2011–0522, 81 FR 18720, clude establishing alternate tonnage Mar. 31, 2016]

391

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00401 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.27 46 CFR Ch. I (10–1–20 Edition)

§ 69.27 Delegation of authority to Measurement System and Standard measure vessels. and Dual Regulatory Measurement (a) Under 46 U.S.C. 14103, the Coast Systems. Guard is authorized to delegate to a (5) Its tonnage measurement training ‘‘qualified person’’ the authority to procedures. measure and certify U.S. flag vessels (d) If, after reviewing the applica- under this part. tion, the Coast Guard determines that (b) Authority to measure and certify the organization is qualified to meas- U.S. flag vessels under the Convention ure and certify U.S. vessels on behalf of Measurement System and Standard the Coast Guard, the organization and Dual Regulatory Measurement must enter into a written agreement Systems may be delegated to an orga- with the Coast Guard which— nization that— (1) Defines the procedures for admin- (1) Is a full member of the Inter- istering and implementing the tonnage national Association of Classification measurement and certification proc- Societies (IACS); (2) Is incorporated under the laws of esses, including the roles and respon- the United States, a State of the sibilities of each party; United States, or the District of Co- (2) Outlines the Coast Guard’s over- lumbia; sight role; (3) In lieu of the requirements in (3) Prohibits the organization from paragraphs (b)(1) and (2) of this section, using an employee or contractor of the is a recognized classification society organization to measure and certify under the requirements of 46 CFR part the tonnage of a vessel if that em- 8. ployee or contractor is acting or has (4) Is capable of providing all meas- acted as a tonnage consultant for that urement services under the Convention same vessel; and Measurement System and Standard (4) Requires the organization to— and Dual Regulatory Measurement (i) Accept all requests to perform del- Systems for vessels domestically and egated services without discrimination internationally; and without regard to the vessel’s loca- (5) Maintains a tonnage measurement tion, unless prohibited from doing so staff that has practical experience in under the laws of the United States or measuring U.S. flag vessels under the Convention Measurement System and under the laws of the jurisdiction in Standard and Dual Regulatory Meas- which the vessel is located; urement Systems; and (ii) Physically inspect each vessel be- (6) Enters into a written agreement, fore issuing a tonnage certificate; as described in paragraph (d) of this (iii) Provide the Coast Guard with section. current schedules of measurement fees (c) Applications for delegation of au- and related charges; thority under this section must be for- (iv) Maintain a tonnage measurement warded to the Commandant and in- file for each U.S. vessel that the orga- clude the following information on the nization measures and permit access to organization: the file by any person authorized by (1) Its name and address. the Commandant; (2) Its organizational rules and struc- (v) Permit observer status represen- ture. tation by the Coast Guard at all formal (3) The location of its offices that are discussions that may take place be- available to provide measurement serv- tween the organization and other ves- ices under the Convention Measure- ment System and Standard and Dual sel tonnage measurement organiza- Regulatory Measurement Systems. tions pertaining to tonnage measure- (4) The name, qualifications, experi- ment of U.S. vessels or to the systems ence, and job title of each full-time or under which U.S. vessels are measured; part-time employee or independent (vi) Comply with and apply all laws contractor specifically designated by and regulations relating to tonnage the organization to provide measure- measurement of U.S. vessels within the ment services under theConvention scope of authority delegated; and

392

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00402 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.53

(vii) Comply with all other provi- Currently sions, if any, of the written agreement. assigned Section of 46 CFR part 69 OMB control [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as No. amended by CGD 97–057, 62 FR 51045, Sept. 30, 69.121(d) ...... 1625–0022 1997; CGD 95–010, 62 FR 67536, Dec. 24, 1997; 69.159 ...... 1625–0022 USCG–2011–0522, 81 FR 18721, Mar. 31, 2016] 69.179 ...... 1625–0022 69.205 ...... 1625–0022 § 69.28 Acceptance of measurement by a foreign country. [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as (a) The Commandant must accept the amended by USCG–2004–18884, 69 FR 58346, measurement of a foreign flag vessel by Sept. 30, 2004] a foreign country as complying with subpart B of this part if: Subpart B—Convention (1) The vessel was measured under Measurement System the terms of the Convention and the foreign country is party to the Conven- § 69.51 Purpose. tion; or This subpart prescribes the require- (2) The Commandant finds that the ments for measuring a vessel in order laws and regulations of that country to comply with the International Con- related to measurement are similar to vention on Tonnage Measurement of those of subpart B of this part. Ships, 1969 (Convention), and 46 U.S.C. (b) The Commandant may accept the chapter 143. measurement of a foreign flag vessel by a foreign country as complying with § 69.53 Definitions. subpart C, D, or E of this part if the As used in this subpart— Commandant finds that the laws and Amidships means the midpoint of the regulations of that country related to registered length, as ‘‘registered measurement are substantially similar length’’ is defined in this section. to those of subpart C, D, or E, respec- Boundary bulkhead means the bulk- tively, of this part. head or partition that separates an en- [USCG–2011–0522, 81 FR 18721, Mar. 31, 2016] closed interior space from the sur- rounding weather. In general, the exte- § 69.29 OMB control numbers assigned rior bulkhead of a deck structure is the under the Paperwork Reduction boundary bulkhead. Act. Cargo space means an enclosed space (a) Purpose. This section collects and appropriated for the transport of cargo displays the control numbers assigned which is to be discharged from the ves- to information collection and record sel. The term does not include a space keeping requirements in this part by which qualifies as an excluded space the Office of Management and Budget under § 69.61. (OMB) pursuant to the Paperwork Re- Enclosed space is defined in § 69.59. duction Act of 1980 (44 U.S.C. 3501 et Excluded space is defined in § 69.61. seq.). The Coast Guard intends that this Line of the upper deck means a longi- part comply with 44 U.S.C. 3507(f), tudinal line at the underside of the which requires that agencies display upper deck or, if that deck is stepped, the current control number assigned by the longitudinal line of the underside the Director of OMB for each approved of the lowest portion of that deck par- agency information collection require- allel with the upper portions of that ment. deck. (b) Display— Molded depth means the vertical dis- tance amidships between the following Currently points: assigned Section of 46 CFR part 69 OMB control (a) From the line of the upper deck at No. the vessel’s side or, if the vessel has 69.17 ...... 1625–0022 rounded gunwales, from the intersec- 69.19 ...... 1625–0022 tion of the line of the upper deck ex- 69.21 ...... 1625–0022 tended to the molded line of the shell 69.27 ...... 1625–0022 69.55 ...... 1625–0022 plating as though the gunwales were of 69.105 ...... 1625–0022 angular design.

393

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00403 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.55 46 CFR Ch. I (10–1–20 Edition)

(b) To the top of the flat keel, to the the weather part of the deck, and below lower edge of the keel rabbet if the ves- which all openings in the sides of the sel is of wood or composite structure, vessel are fitted with permanent means or to the point where the line of the of watertight closing. flat of the bottom extended inward Weathertight means secure against cuts the side of the keel if the vessel’s penetration of water into the vessel in lower part is hollow or has thick any sea condition. garboards. [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as Molded draft means— amended by USCG–2011–0522, 81 FR 18721, (a) For vessels assigned a load line Mar. 31, 2016] under parts 42, 44, 45, or 47 of this chap- ter, the draft corresponding to the § 69.55 Application for measurement Summer Load Line (other than a tim- services. ber load line); Applications for measurement under (b) For passenger vessels assigned a this subpart must include the following load line under part 46 of this chapter, information and plans: the draft corresponding to the deepest (a) Type of vessel. subdivision load line assigned; (b) Vessel’s name and official number (c) For vessels to which parts 42, 44, (if assigned). 45, 46, or 47 of this chapter do not apply (c) Builder’s name and the vessel hull but which otherwise have been as- number assigned by builder. signed a load line, the draft cor- (d) Place built and delivery date (or responding to the Summer Load Line scheduled delivery date). so assigned; (e) Date keel was laid. (d) For vessels to which no load line (f) Overall length, breadth, and depth has been assigned but the draft of of vessel. which is restricted under any Coast (g) Lines plan. Guard requirement, the maximum (h) Booklet of offsets at stations. draft permitted under the restriction; (i) Capacity plans for tanks and cargo and compartments. (e) For other vessels, 75 per cent of (j) Hydrostatic curves. the molded depth. (k) Construction plans showing meas- Passenger means a person on board a urements and scantlings of deck struc- vessel other than— tures, hatches, appendages, recesses, (a) The master, a member of the and other enclosed spaces. crew, or other person employed or en- (l) Arrangement plans. gaged in any capacity in the business [CGD 89–007; CGD 89–007a, 58 FR 60266, Nov. of the vessel; and 15, 1993, 58 FR 65131, Dec. 13, 1993, as amended (b) A child under one year of age. by CGD 95–014, 60 FR 31606, June 15, 1995; Registered breadth means the max- USCG–2011–0522, 81 FR 18721, Mar. 31, 2016] imum breadth of a vessel measured § 69.57 Gross tonnage ITC. amidships to the molded line of the frame in a vessel with a metal shell Gross tonnage ITC (GT ITC) is deter- and to the outer surface of the hull in mined by the following formula GT ITC all other vessels. = K1 V, in which V = total volume of all Registered length means either 96 per- enclosed spaces in cubic meters and K1 cent of the length on a waterline at 85 = 0.2 + 0.02 log10 V. percent of the least molded depth [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as measured from the top of the flat keel amended by USCG–2011–0522, 81 FR 18721, or the length from the fore side of the Mar. 31, 2016] stem to the axis of the rudder stock on that waterline, whichever is greater. In § 69.59 Enclosed spaces. vessels designed with a rake of keel, Enclosed space means a space which is this length is measured on a waterline bounded by the vessel’s hull, by fixed parallel to the design waterline. or portable partitions or bulkheads, or Upper deck means the uppermost by decks or coverings other than per- complete deck exposed to weather and manent or movable awnings. No break sea, which has permanent means of in a deck, nor any opening in the ves- weathertight closing of all openings in sel’s hull, in a deck or in a covering of

394

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00404 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.61

a space, or in the partitions or bulk- breadth of the deck in way of the sepa- heads of a space, nor the absence of a ration. (See § 69.75, figures 5 and 6.) partition or bulkhead precludes the (4) When the deck at the line of an space from being included in the en- opening has rounded gunwales, the closed space. Portable enclosed spaces, breadth of the deck is the distance be- regardless of method of attachment to tween the tangent points indicated in the vessel, are treated as enclosed § 69.75, figure 11. spaces as defined in this paragraph. (c) A space that is open to the weath- er and that is under an overhead deck [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as covering with no connection on the amended by USCG–2011–0522, 81 FR 18721, Mar. 31, 2016] space’s exposed sides between the cov- ering and the deck other than the stan- § 69.61 Excluded spaces. chions necessary for the covering’s sup- port is an excluded space. An open rail (a) Excluded space means an enclosed or bulwark fitted at the vessel’s side space which is excluded from the total does not disqualify the space from volume of all enclosed spaces (V) in being an excluded space if the height calculating gross tonnage ITC. Spaces between the top of the rail or bulwark that are below the upper deck and open and the overhead structure or curtain to the sea, as well as those spaces list- plate (if fitted) is not less than 2.5 feet ed in paragraphs (b) through (f) of this or one-third of the height of the space, section, are excluded spaces, except as whichever is greater. (See § 69.75, figure under paragraph (g) of this section. 7.) (b) A space that is within a structure (d) A space in a side-to-side structure and that is opposite an end opening ex- directly in way of opposite side open- tending from deck to deck (except for a ings not less than 2.5 feet in height or curtain plate of a height not exceeding one-third of the height of the struc- by more than one inch the depth of the ture, whichever is greater, is an ex- adjoining deck beams) and having a cluded space. If the opening is only on breadth equal to or greater than 90 per- one side of the structure, the space to cent of the breadth of the deck at the be excluded is limited inboard from the line of the opening is an excluded opening to a maximum of one-half of space, subject to the following: the breadth of the deck in way of the (1) Only the space between the actual opening. (See § 69.75, figure 8.) end opening and a line drawn parallel (e) A space in a structure imme- to the line or face of the opening at a diately below an uncovered opening in distance from the opening equal to one- the deck overhead is an excluded space, half of the breadth of the deck at the if the opening is exposed to the weath- line of the opening is excluded. (See er and the space to be excluded is lim- § 69.75, figure 1.) ited to the area of the opening. (See (2) If, because of any arrangement § 69.75, figure 9.) (except convergence of the outside (f) A recess in the boundary bulkhead plating as shown in § 69.75, figure 3), the of a structure which is exposed to the breadth of the space is less than 90 per- weather and which has an opening that cent of the breadth of the deck, only extends from deck to deck without a the space between the line of the open- means of closing is an excluded space, ing and a parallel line drawn through if the interior width of the space is not the point where the athwartship greater than the width of the opening breadth of the space is equal to 90 per- and extension of the space into the cent or less of the breadth of the deck structure is not greater than twice the is excluded. (See § 69.75, figures 2 and 4.) width of the opening. (See § 69.75, figure (3) When any two spaces, either of 10.) which is excluded under paragraphs (g) Any space described in paragraphs (b)(1) or (b)(2) of this section, are sepa- (a) through (f) of this section which ful- rated by an area that is completely fills at least one of the following condi- open except for bulwarks or open rails, tions is not an excluded space: these two spaces must not be excluded (1) The space is fitted with shelves or if the separation between the two other means designed for securing spaces is less than the least half cargo or stores.

395

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00405 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.63 46 CFR Ch. I (10–1–20 Edition)

(2) The opening that would otherwise § 69.63 Net tonnage ITC. permit the space to be excluded space Net tonnage ITC (NT ITC) is deter- is fitted with a means of closure. (3) Other features of the space make mined by the formula: it possible for the space to be closed. [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as amended by USCG–2011–0522, 81 FR 18721, Mar. 31, 2016]

[USCG–2011–0522, 81 FR 18721, Mar. 31, 2016] cepted naval architectural practices for the spaces concerned. § 69.65 Calculation of volumes. (b) Measurements must be taken, re- (a) Volumes V and Vc used in calcu- gardless of the fitting of insulation or lating gross tonnage ITC and net ton- the like, to the inner side of the shell nage ITC, respectively, must be meas- or structural boundary plating in ves- ured and calculated according to ac- sels constructed of metal, and to the outer surface of the shell or to the

396

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00406 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 ER31MR16.000 Coast Guard, Dept. of Homeland Security § 69.73

inner side of structural boundary sur- under authority of the foreign country faces in all other vessels. to replace it, whichever is earlier. [USCG–2011–0522, 81 FR 18722, Mar. 31, 2016] [USCG–2011–0522, 81 FR 18722, Mar. 31, 2016]

§ 69.67 Marking of cargo spaces. § 69.71 Change of net tonnage. Cargo spaces used in determining vol- (a) When a vessel is altered so that ume (Vc) for calculating net tonnage the net tonnage is increased, the new net tonnage must be applied imme- must be permanently marked with the diately. letters ‘‘CC’’ (cargo compartment) (b) A vessel concurrently assigned which are at least four inches in height load lines under both the International and positioned so as to be visible at all Convention on Load Lines and either times. the International Convention for the Safety of Life at Sea (SOLAS) or other § 69.69 Tonnage certificates. international agreement must be as- (a) On request of the vessel owner, signed only one net tonnage. The net the authorized measurement organiza- tonnage assigned must be the net ton- tion must issue an International Ton- nage applicable to the load line as- nage Certificate (1969) as evidence of signed under the International Conven- the vessel’s measurement under this tion on Load Lines, SOLAS or other subpart for a vessel that is 24 meters international agreement for the trade (79.0 feet) or more in registered length, in which the vessel in engaged. (c) When a vessel is altered so that will engage on a foreign voyage, and is the net tonnage is decreased or the ves- not a vessel of war. The Certificate is sel’s trade is changed so that the load delivered to the vessel owner or master line assigned for that trade under para- and must be maintained on board the graph (b) of this section is no longer vessel when it is engaged on a foreign appropriate and results in a decrease in voyage. For a vessel for which a re- its net tonnage, a new International measurement under § 69.71 resulted in a Tonnage Certificate (1969) incor- net tonnage ITC decrease due to porating that net tonnage may not be changes other than alterations or issued until twelve months after the modifications to the vessel deemed by date on which the current Certificate the Commandant to be of a major char- was issued. However, if one of the fol- acter, an International Tonnage Cer- lowing apply, a new Certificate may be tificate (1969) reflecting the decreased issued immediately: net tonnage ITC will not be reissued (1) The vessel is transferred to the until 12 months have elapsed from the flag of another nation. date of measurement indicated on the (2) The vessel undergoes alterations current certificate. or modifications which the Com- (b) If an International Tonnage Cer- mandant deems to be of a major char- tificate (1969) is not issued for a vessel acter, such as the removal of a super- measured under this part, the measure- structure which requires an alteration of the assigned load line. ment organization must issue a U.S. Tonnage Certificate as evidence of the [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as vessel’s measurement under this sub- amended by USCG–1999–6216, 64 FR 53225, Oct. part, which must also indicate the ves- 1, 1999; USCG–2011–0522, 81 FR 18722, Mar. 31, 2016] sel’s measurement under any other subpart of this part. There is no re- § 69.73 Treatment of novel type ves- quirement to maintain the U.S. Ton- sels. nage Certificate on board the vessel. (a) When application of this subpart (c) For a vessel that transfers flag to to a novel type vessel produces unrea- a foreign country that is party to the sonable or impractical results, the Convention, the International Tonnage Commandant may determine a more Certificate (1969) remains valid for a suitable method of measurement. period not to exceed 3 months after the (b) Requests for a determination flag transfer, or until an International must be submitted to the Com- Tonnage Certificate (1969) is issued mandant, explaining the reasons for

397

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00407 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.75 46 CFR Ch. I (10–1–20 Edition)

seeking a determination, and including § 69.75 Figures. a description of the spaces in question, if applicable. [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 97–057, 62 FR 51045, Sept. 30, 1997; USCG–1999–6216, 64 FR 53225, Oct. 1, 1999; USCG–2011–0522, 81 FR 18722, Mar. 31, 2016]

398

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00408 Fmt 8010 Sfmt 8006 Y:\SGML\250206.XXX 250206 ER31MR16.001 Coast Guard, Dept. of Homeland Security § 69.75

399

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00409 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 ER31MR16.002 § 69.101 46 CFR Ch. I (10–1–20 Edition)

[USCG–2011–0522, 81 FR 18722, Mar. 31, 2016] Floor means a vertical plate or tim- ber extending from bilge to bilge in the Subpart C—Standard Regulatory bottom of a vessel. In a wooden vessel, Measurement System ‘‘floor’’ means the lowermost timber connecting the main frames at the keel § 69.101 Purpose. when that timber extends the full This subpart prescribes the proce- depth of the frames to which it is fas- dures for measuring a vessel under the tened. In a double bottom, floors usu- Standard Regulatory Measurement ally extend from the outer to the inner System described in 46 U.S.C. 14512. bottom. Gross register tonnage is defined in [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as § 69.107(a). amended by USCG–2011–0522, 81 FR 18724, Mar. 31, 2016] Hatch means an opening in a deck through which cargo is laden or dis- § 69.103 Definitions. charged. As used in this subpart— Line of the normal frames means the Between-deck means the space above imaginary horizontal line that con- the line of the tonnage deck and below nects the inboard faces of the smallest the line of the deck next above. normal frames. Break means the space between the Line of the ordinary frames means the line of a deck and the upper portion of line of intersection of the imaginary that deck, in cases where that deck is surface or surfaces tangent to the in- stepped and continued at a higher ele- board faces of the ordinary frames (or vation. the inside of the vessel’s skin, if there Camber means the perpendicular rise are no ordinary frames), and the imagi- or crown of a deck at the centerline of nary plane running transversely the vessel measured above the skin of through the vessel at the tonnage sta- the vessel at the vessel’s sides. tion of interest. Ceiling means the permanent plank- Line of tonnage deck means the line ing or plating fitted directly on the in- determined under § 69.109(e). board side of frames, floors, or double Line of uppermost complete deck means bottom and includes cargo battens and the line determined under § 69.111(b). refrigeration insulation but does not Net register tonnage is defined in include false ceiling which stands off § 69.107(b). from the framing. Normal frame means a frame, regard- Coaming means both the vertical less of size, used to stiffen a structure. plating around a hatch or skylight and Ordinary frame means a primary side the sill below an opening in a bulk- or bottom frame or floor used for head. strengthening the hull. Deckhouse means a structure that is Registered breadth is defined in § 69.53. on or above the uppermost complete deck and that does not extend from Registered depth means ‘‘molded side to side of the vessel. The term in- depth’’ as defined in § 69.53. cludes cabin trunks and closed-in Registered length is defined in § 69.53. spaces over the holds of vessels. Shelter deck means the uppermost Depth of frame means the perpen- deck that would have qualified as the dicular depth of a bottom frame and uppermost complete deck had it not the athwart distance between the in- been fitted with a middle line opening. board and outboard faces of a side Step means a cutoff in a deck or in frame. the bottom, top, or sides of a space re- Double bottom means a space at the sulting in varying heights of a deck or bottom of a vessel between the inner varying heights or widths of a space. and outer bottom plating and used Superstructure means all permanently solely for water ballast. closed-in structures, including all port- Double bottom for water ballast means able enclosed spaces, on or above the a space at the bottom of a vessel be- line of the uppermost complete deck tween the inner and outer bottom plat- or, if the vessel has a shelter deck, on ing, used solely for water ballast. or above the line of the shelter deck.

400

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00410 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.108

Examples of superstructure spaces in- (i) Capacity plans for tanks clude forecastles, bridges, poops, deck- (j) Construction plans showing meas- houses, breaks, portable tanks, and urements and scantlings of hull and su- modular quarters units. perstructure. Tonnage deck is defined in § 69.109(c). (k) Tonnage drawing showing ton- Tonnage interval means the longitu- nage length in profile and tonnage sec- dinal distance between transverse sec- tions. tions of a vessel’s under-deck, between- (l) Arrangement plans. deck, or superstructure when divided into an even number of equal parts for [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 95–014, 60 FR 31606, June 15, purposes of volume integration. 1995; USCG–2011–0522, 81 FR 18725, Mar. 31, Tonnage length is defined in § 69.109(f). 2016] Tonnage station means the longitu- dinal location of each transverse sec- § 69.107 Gross and net register ton- tion where breadth and depth measure- nage. ments are taken when calculating (a) The vessel’s gross register ton- under-deck volumes under this subpart. nage is the sum of the following ton- Tonnage stations are numbered con- nages, less the tonnages of certain secutively from fore to aft, beginning spaces exempt under § 69.117: with the number one. (1) Under-deck tonnage (§ 69.109). Uppermost complete deck is defined in (2) Between-deck tonnage (§ 69.111). § 69.108. (3) Superstructure tonnage (§ 69.113). Zone of influence method means a (4) Excess hatchway tonnage Simpson’s first rule integration meth- (§ 69.115(c)). od for determining volumes of under- deck spaces that limits the sectional (5) Tonnage of framed-in propelling areas associated with these spaces to machinery spaces included in calcu- the sectional areas at adjacent under- lating gross tonnage (§ 69.121(d)(1)). deck tonnage stations, depending on (b) The vessel’s net register tonnage their proximity to those stations. For is the gross register tonnage less de- stations for which the under-deck sec- ductions under §§ 69.119 and 69.121. tional areas are multiplied by four, the (c) The authorized measurement or- zone of influence extends two-thirds of ganization must issue a U.S. Tonnage a tonnage interval on either side of the Certificate as evidence of a vessel’s under-deck station, and for the remain- measurement under this subpart, ing stations, the zone of influence ex- which must also indicate the vessel’s tends one-third of a tonnage interval measurement under the Convention on either side of the station. Measurement System in subpart B of this part, if applicable. There is no re- [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as quirement to maintain the U.S. Ton- amended by USCG–2011–0522, 81 FR 18724, nage Certificate on board the vessel. Mar. 31, 2016] [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as § 69.105 Application for measurement amended by USCG–2011–0522, 81 FR 18725, services. Mar. 31, 2016] Applications for measurement serv- § 69.108 Uppermost complete deck. ices under this subpart must include the following information and plans: (a) Defined. ‘‘Uppermost complete (a) Type of vessel. deck’’ means the uppermost deck (b) Vessel’s name and official number which extends from stem to stern and (if assigned). from side to side at all points of its (c) Builder’s name and the vessel hull length and is bound by the vessel’s number assigned by the builder. hull. (d) Place built and delivery date (or (b) Restrictions. The uppermost com- scheduled delivery date). plete deck must not: (e) Date keel was laid. (1) Extend above any space exempted (f) Overall length, breadth, and depth as open space under paragraph (d) of of vessel. § 69.117; (g) Lines plan. (2) Extend below the design water- (h) Booklet of offsets. line, except in the case of vessels such

401

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00411 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.109 46 CFR Ch. I (10–1–20 Edition)

as submersibles, where the entire up- decks, the tonnage deck is the upper- permost complete deck is submerged most complete deck. In vessels with during normal operations; or more than two enumerated decks, the (3) Rest directly on consecutive or al- tonnage deck is the second enumerated ternating ordinary bottom frames or deck from the keel as determined in floors for a distance of over one-half of paragraph (d) of this section. the tonnage length. (d) Enumerating the decks to identify (c) Deck discontinuities. Decking the second deck from the keel. The upper- athwartships of the following deck dis- most complete deck is an enumerated continuities is not considered to be deck. Decks below the uppermost com- part of the uppermost complete deck: plete deck that extend from stem to (1) Through-deck openings that are stern and side to side at all points not protected from the sea and the along their lengths are also enumer- weather, such as would be provided by ated, provided they are not disqualified hatch covers or a surrounding super- by either of the following deck dis- structure that encloses the opening continuities: and whose area is more than 10 percent of the total deck area from stem to (1) A through-deck opening that is stern as viewed from above. not fitted with a cover (or equivalent) (2) Middle line openings conforming and whose area is more than 10 percent to the requirements of § 69.117(e)(2). of the total deck area, as viewed from (3) Deck recesses that are not above. through-hull for which the depth of the (2) A deck recess that is not through- deck recess at its deepest point is more hull for which the depth at its deepest than five feet below adjacent portions point is more than five feet below adja- of the deck, and whose area (as viewed cent portions of the deck and whose from above) is more than 10 percent of area as viewed from above is more than the total deck area from stem to stern, 10 percent of the total deck area from as viewed from above. stem to stern, as viewed from above. (4) Notches bounded by a deck below (e) Identifying the line of the tonnage that wrap around from the ends to the deck. (1) If the tonnage deck runs in a sides of the vessel for which the depth continuous line from stem to stern, the at the deepest point is more than five line of the tonnage deck is the longitu- feet below adjacent portions of the dinal line at the underside of the ton- deck, the area is more than one percent nage deck. of the total deck area from stem to (2) If the tonnage deck is stepped, the stern as viewed from above, the length line of the tonnage deck is the longitu- of the notch in the direction of the ves- dinal line of the underside of the lowest sel’s longitudinal axis exceeds 10 feet portion of that deck parallel with the at any point across its width, and the upper portions of that deck. Steps that width of the notch in the direction of do not extend from side to side or are the vessel’s longitudinal axis exceeds less than three feet in length are ig- two feet at any point along its length. nored when establishing the line of the [USCG–2011–0522, 81 FR 18725, Mar. 31, 2016] tonnage deck. (See § 69.123, figures 1 and 2.) Spaces between the line of the § 69.109 Under-deck tonnage. tonnage deck and the higher portions (a) Defined. ‘‘Under-deck tonnage’’ of that deck are not included in under- means the tonnage of the space below deck tonnage. the line of the tonnage deck, as that (f) Tonnage length. (1) ‘‘Tonnage volume is calculated under this sec- length’’ means the length of a hori- tion. zontal straight line measured at the (b) Method of calculating tonnage. centerline of the vessel from the point Under-deck tonnage is calculated by forward where the line of the tonnage applying Simpson’s first rule using the deck intersects the line of the inboard tonnage length and the areas of the faces of the ordinary side frames to the transverse sections prescribed by this point aft where the line of the tonnage section. deck intersects the inboard face of the (c) Identifying the tonnage deck. In ordinary transom frames or cant vessels with two or less enumerated frames. (See § 69.123, figure 3.)

402

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00412 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.109

(2) For a vessel having a headblock or of the beam down to the upper side of square end with framing which extends the ordinary frames, floors, from the tonnage deck to the bottom of longitudinals, or tank top of a double the vessel, the tonnage length termi- bottom for water ballast, as the case nates on the inboard face of the may be. headblock or ordinary end frames. (See (2) When a depth falls at a point § 69.123, figure 4.) where the tank top of a double bottom (3) For a vessel having a square bow for water ballast has a straight fall or stern and tonnage deck with cam- from centerline to the wings, the depth ber, the effect of the camber on the terminates at one-half of the height of tonnage length must be considered. fall. (See § 69.123 figure 8.) The tonnage length must be measured (3) When a depth falls at a point below the tonnage deck at a distance where the tank top of a double bottom equal to one-third of round camber and for water ballast rises from the center- one-half of straight pitch camber. line to the wings, the depth terminates (4) The forward and after termini of at one-half the dead rise. (See § 69.123, the tonnage length must be a distance figure 9.) of no more than eight and one-half feet (4) The depth at the midpoint of the from the associated inboard surface of tonnage length or, when a vessel is the skin of the hull at the bow and measured in parts, the depth at the stern as measured at the centerline of midpoint of each part determines the the vessel, and the after terminus must number of equal parts into which each not be forward of the centerline of the depth is divided, as follows: rudderstock. (i) If the midpoint depth is 16 feet or (g) Division of vessel into transverse less, each depth is divided into four sections. (1) Except as under paragraph equal parts. If the midpoint depth ex- (m)(1)(iii) of this section, the tonnage ceeds 16 feet, each depth is divided into length is divided into an even number six equal parts. (See § 69.123, figure 7.) of equal parts as indicated in the fol- (ii) The interval between the points lowing table: of division of a depth and one-third in- tervals are carried to the nearest hun- Divi- Class Tonnage length sions dredth of a foot. (i) Breadths of transverse sections. (1) 1 ...... 50 ft. or less ...... 6 Transverse section breadths are meas- 2 ...... Over 50 ft. but not exceeding 100 ft 8 ured horizontally at each point of divi- 3 ...... Over 100 ft. but not exceeding 150 10 ft. sion of each depth and also at the 4 ...... Over 150 ft. but not exceeding 200 12 upper and lower points of each depth. ft. Breadths are measured to the inboard 5 ...... Over 200 ft. but not exceeding 250 14 ft. face of the ordinary frames or to the 6 ...... Over 250 ft...... 16 line of the ordinary frames. Breadths are measured parallel to each other (2) Transverse sections are cut at and at right angle to the vessel’s cen- each end of the tonnage length and at terline. (See § 69.123, figure 7.) each point of division of the tonnage (2) Upper breadths are not reduced by length, whose location is referred to as measuring to deck-beam brackets. In a tonnage station, and assigned sequen- cases of camber when an upper breadth tial tonnage station numbers, begin- passes through the deck (see § 69.123, ning at the stem. Intervals and one- figure 7), the breadth is measured to third intervals between the points of the line of the side frames at the under division are measured to the nearest side of the deck projected vertically up thousandth of a foot. (See § 69.123 fig- to the height of the upper breadth. ures 5 and 6.) (3) Bottom breadths are measured (h) Depths of transverse sections. (1) only as far as the flat of the floor ex- Transverse section depths are meas- tends. (See § 69.123, figures 7 and 10.) ured at each point of division of the When bottom frames rise immediately tonnage length at the centerline of the from the flat keel, bottom breadths are vessel from a point below the line of equal to the breadth of the flat keel. the tonnage deck equal to one-third of Where there is no double bottom for the camber or to one-half of the pitch water ballast and where there is dead

403

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00413 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.109 46 CFR Ch. I (10–1–20 Edition)

rise of the bottom out to the sides of (4) The volume under-deck is divided the vessel, bottom breadths are equal by 100 and is, subject to exemptions, to the part of the bottom plating not the under-deck tonnage. affected by dead rise. (m) Steps in double bottom for water (4) Bottom breadths falling in way of ballast. (1) The tonnage length of a ves- a double bottom, the top of which rises sel having a step exceeding six inches or falls from centerline to the wings, in height in its double bottom for are measured between the inboard water ballast is divided into longitu- faces of the frame brackets which con- dinal parts at the step. Each part is nect the double bottom with the subdivided as follows to determine the frames. (See § 69.123, figures 8 and 9.) number of transverse sections: (j) Measuring spaces having ceiling. (i) Parts 20 feet or under in length The maximum allowance for termi- are divided into two equal parts. nating measurements on ceiling is (ii) Parts over 20 feet and under 40 three inches on the bottom frames or feet in length are divided into four tank top and three inches on each side equal parts. frame. When ceiling is less than three (iii) Parts 40 feet or over are divided inches thick, only the actual thickness as provided in paragraph (g)(1) of this is allowed. When ceiling is fitted on a section. platform directly above the bottom (2) The tonnage of each part is cal- frames, depths are measured down culated separately. The sum of the ton- through the platform to the upper side nages of the parts is the under-deck of the frames and the allowable ceiling tonnage. on the platform is then deducted. (n) Spaces open to the sea. In calcu- (k) Area of transverse sections. (1) A lating the tonnage of spaces below the transverse section at an end of the ton- uppermost complete deck, subtract nage length may not yield area, except from each breadth measurement the in vessels (such as barges) with an up- portion of that measurement that right bow or stern. spans a space, or a portion thereof, (2) The breadths of each transverse that is open to the sea. section are numbered from above, the (o) Open vessels. (1) An open vessel is upper being ‘‘1’’, the second down being a vessel without an uppermost com- ‘‘2’’, and so on to the lowest. plete deck. (3) Multiply the even numbered (2) The line of the tonnage deck for breadths by four and the odd numbered an open vessel is the upper edge of the breadths by two, except for the first upper strake. Depths of transverse sec- and last breadths, which are multiplied tions are taken from this line. by one. (3) Any vessel, other than one having (4) Add together the products from a mechanically refrigerated hold, that paragraph (k)(3) of this section. is not an open vessel and that has a (5) Multiply the sum from paragraph tonnage length of less than 50 feet is (k)(4) of this section by one-third of the measured as an open vessel, if the dis- interval between the breadths. The tance between the line of its tonnage product is the area of the transverse deck and the upper edge of the upper section. strake is more than one-sixth of the (l) Tonnage. (1) Number the trans- midship depth. ‘‘Midship depth’’ means verse sections successively ‘‘1’’, ‘‘2’’, the depth measured from the line of and so forth, beginning at the bow. the upper edge of the upper strake to (2) Multiply the area of the even the point in the bottom used for meas- numbered sections by four and the area uring tonnage depths. of the odd numbered sections by two, (p) General requirements on ordinary except the first and last sections, frames—(1) Construction. An ordinary which are multiplied by one. frame must not be penetrated by an (3) Add together the products from intersecting frame used to strengthen paragraph (l)(2) of this section and the vessel’s hull, except in a vessel of multiply the sum by one-third of the wooden construction. Ordinary frames interval between the sections. The must be of the same material, or have product is the volume under-deck. the same material properties, as the

404

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00414 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.111

adjacent hull, and attach to the adja- (5) Asymmetrical framing. Where ordi- cent hull to at least the same extent as nary frames are configured such that adjacent ordinary and normal frames. the line of the ordinary frames would If comprised of different elements, the be asymmetrical about the centerline elements must be joined to each other of the vessel, breadth measurements to the same extent that the frame is are determined by taking half-breadths joined to the hull. The frame, or por- on the side of the vessel that yields the tions thereof, not meeting these re- greatest sectional area at the associ- quirements must be treated as if not ated tonnage station, and multiplying there when establishing the line of the those half-breadths by a factor of two ordinary frames. to yield the full breadths. (2) Frame spacing and extension. Ordi- [CGD 87–015b, 54 FR 37657, Sept. 12, 1989; 54 nary frames used to establish the line FR 40240, Sept. 29, 1989; USCG–2014–0688, 79 of the ordinary frames must be spaced FR 58281, Sept. 29, 2014; USCG–2011–0522, 81 on centers that are a maximum of four FR 18725, Mar. 31, 2016] feet apart. These frames must extend for a length of at least one tonnage in- § 69.111 Between-deck tonnage. terval that begins at, ends at, or (a) Defined. ‘‘Between-deck tonnage’’ crosses the associated tonnage station. means the tonnage of the space above For a longitudinally-framed vessel, the the line of the tonnage deck and below frames must begin and end at a trans- the line of the uppermost complete verse ordinary frame or at the vessel’s deck. hull. (b) Identifying the line of the uppermost (3) Different sized framing. When an complete deck. (1) If the uppermost com- ordinary frame has a different depth of plete deck runs in a continuous line frame than an adjacent ordinary frame, from stem to stern, the line of the up- the line of the ordinary frames is es- permost complete deck is the longitu- tablished using the set of alternating dinal line of the underside of the upper- frames that yields the smallest sec- most complete deck. tional area at the associated tonnage (2) If the uppermost complete deck is station, with the sectional area based stepped, the line of the uppermost com- on the frame with the smallest depth of plete deck is the longitudinal line of frame in the chosen alternating set. the underside of the lowest portion of (4) Frame openings. If an opening in that deck parallel with the upper por- an ordinary frame is oversized, or is tions of that deck. Steps that do not penetrated by a frame other than an extend from side to side or are less ordinary frame, the line of the ordi- than three feet in length are ignored nary frames is established as if the when establishing the line of the upper- frame material above and inboard of most complete deck. Spaces between the opening is not there. Similarly, the line of the uppermost complete frame material separating adjacent deck and the higher portions of the openings that are within the longest deck are included in superstructure linear dimension of either opening tonnage. must be treated as if not there when (c) Method for calculating tonnage. The establishing the line of the ordinary tonnage of each level of the between- frames. An opening is oversized if the deck space is calculated separately, as opening is: follows: (i) Circular in shape with a diameter (1) The length of each level is meas- exceeding 18 inches; ured at the mid-height between the (ii) Oval in shape of a size greater line of the deck above and the line of than 15 × 23 inches (i.e., either the the deck below. Measure from the point minor axis exceeds 15 inches or the forward where the continuation of the major axis exceeds 23 inches, and the line of the normal frames intersects oval’s area exceeds 255 square inches the center line of the vessel aft to the (345 square inches in a fuel tank)); or forward face of the normal transom (iii) Any shape other than circular or framing. oval, whose area exceeds 255 square (2) Divide the length under paragraph inches (345 square inches in a fuel (c)(1) of this section into the same tank). number of equal parts into which the

405

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00415 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.113 46 CFR Ch. I (10–1–20 Edition)

tonnage length is divided under end is one-half the nearest breadth. If § 69.109(g)(1). an end is in the form of an arc or curve (3) Measure at mid-height the inside having a decided flat, the breadth at breadth of the space to the line of the the end is two-thirds of the nearest normal frames at each end and at each breadth. point of division of the length. Number (4) Multiply the even numbered the breadths successively ‘‘1’’, ‘‘2’’, and breadths by four and the odd numbered so forth beginning at the bow. by two, except the first and last (4) Multiply the even numbered breadth, which are multiplied by one. breadths by four and the odd numbered (5) Add together the products under breadths by two, except the first and paragraph (b)(4) of this section and last, which are multiplied by one. multiply the sum by one-third of the (5) Add together the products under interval between the points at which paragraph (c)(4) of this section and the breadths are taken. The product is multiply the sum by one-third of the the square foot area of the structure at interval between the points at which mid-height. the breadths are taken. The product is (6) Multiply this area by the average the square foot area of the space at of the heights taken at each point of mid-height. division of the structure between its (6) Multiply the area of the space at decks or the line of its decks. The prod- mid-height by the average of the uct divided by 100 is the tonnage of heights taken each point of division of that structure. the space. The product divided by 100 is (c) A structure having steps in its the tonnage of that space. deck or side must be measured in parts. (7) The between-deck tonnage is the (d) The superstructure tonnage is the sum of the tonnage of each level within sum of tonnages of each level above the the between-deck space. line of the uppermost complete deck [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as (or shelter deck, if applicable). amended by CGD 97–057, 62 FR 51045, Sept. 30, (e) When a structure is located over a 1997; USCG–2011–0522, 81 FR 18726, Mar. 31, cut-away portion of the tonnage deck, 2016] the structure’s height is measured § 69.113 Superstructure tonnage. from the under side of its overhead deck to the line of the tonnage deck. If (a) Defined. ‘‘Superstructure ton- the tonnage deck has no camber, allow nage’’ means the tonnage of all super- for camber in the overhead deck. structure spaces. (f) For structures of a standard geo- (b) Method of calculating tonnage. The metric shape, a simple geometric for- tonnage of all structures on each level mula that yields an accurate volume on or above the uppermost complete may be used. All measurements are deck (or shelter deck, if applicable) is terminated at the line of the normal calculated separately as follows: frames. (1) Measure the length of each struc- ture along its centerline at mid-height [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as to the line of the normal frames. (See amended by USCG–2014–0688, 79 FR 58281, § 69.123, figure 11.) Sept. 29, 2014; USCG–2011–0522, 81 FR 18726, (2) Divide the length under paragraph Mar. 31, 2016] (b)(1) of this section into an even num- ber of equal parts most nearly equal to § 69.115 Excess hatchway tonnage. those into which the tonnage length is (a) Hatchways that are above the divided under § 69.109. tonnage deck and are either open to (3) Measure at mid-height the inside the weather or within open structures breadth to the line of the normal are measured to determine excess frames at each end and at each point of hatchway tonnage. Hatchways that are division of the length. Number the in between-deck spaces, on decks with- breadths successively ‘‘1’’, ‘‘2’’, and so in closed-in structures, or on open forth, beginning at the extreme for- structures are not measured. ward end of the structure. If an end of (b) The tonnage of a hatchway is its the structure is in the form of a contin- length times breadth times mean depth uous arc or curve, the breadth at that divided by 100. Mean depth is measured

406

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00416 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.117

from the under side of the hatch cover by the propelling machinery itself, and to the top of the deck beam. a propelling machinery working space (c) From the sum of the tonnage of allowance under § 69.121 limited to two the hatchways under this section, sub- feet, if available, on each side of the tract one-half of one percent of the ves- propelling machinery are exempt. sel’s gross register tonnage exclusive of (iii) Any part of an escape shaft, or a the hatchway tonnage. The remainder companion sheltering an escape shaft, is added as excess hatchway tonnage in above the line of the uppermost com- calculating the gross register tonnage. plete deck is exempt as light or air [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as space. amended by USCG–2011–0522, 81 FR 18727, (iv) Space that would otherwise be Mar. 31, 2016] exempt as a light or air space is not ex- empt when propelling machinery is § 69.117 Spaces exempt from inclusion boxed-in and does not extend above the in tonnage. line of the uppermost complete deck. (a) Purpose. This section lists spaces Any portion of the boxed-in space which are exempt from inclusion in above the line of the uppermost com- tonnage. plete deck is exempt. (b) Spaces on or above the line of the (5) Skylights affording light or air to uppermost complete deck. The following a space below, other than to propelling spaces or portions of spaces on or above machinery spaces. Space immediately the line of the uppermost complete below the line of the deck on which a deck are exempt if the spaces or por- skylight is located is exempt only tions are reasonable in extent and when there is an opening in the next adapted and used exclusively for the lower deck directly below the skylight purpose indicated: to permit light or air to an even lower (1) Spaces for anchor gear, including deck. capstan, windlass, and chain locker, (6) Machinery spaces, other than for are exempt. propelling machinery under § 169.121. (2) Companions and booby-hatches protecting stairways or ladderways (7) Spaces for steering gear. leading to spaces below are exempt, (8) Water closet spaces that are fitted whether or not the spaces below are ex- with at least a toilet and are intended empt. for use by more than one person. (3) Galley or other spaces fitted with (9) The space in a wheelhouse nec- a range or oven for cooking food to be essary for controlling the vessel. consumed on board the vessel are ex- (c) Passenger spaces. (1) As used in empt. this section, the term ‘‘passenger’’ in- (4) Spaces designed to provide light cludes officers and enlisted men on or air to propelling machinery are ex- military vessels who are not assigned empt, as follows: ship’s duties and not entered on the (i) When propelling machinery is lo- ship’s articles. cated entirely on or above the line of (2) As used in this section, ‘‘pas- the uppermost complete deck, the en- senger space’’ means a space reserved tire propelling machinery space and all exclusively for the use of passengers fuel bunker spaces that are also lo- and includes, but is not limited to, cated above that line are exempt as berthing areas, staterooms, bathrooms, light or air spaces. (See exception in toilets, libraries, writing rooms, § 69.121(d)(1) for framed-in spaces.) lounges, dining rooms, saloons, smok- (ii) When part of the propelling ma- ing rooms, and recreational rooms. The chinery projects above the line of the space need not be part of or adjacent to uppermost complete deck into a space a berthing area to be considered a pas- used exclusively to provide light or air senger space. Spaces used by both pas- to the propelling machinery, the entire sengers and crew members (e.g., first space is exempt as light or air space. aid stations), or used for passenger sup- When any portion of this space is used port but not accessible to passengers at for purposes other than providing light all times (e.g., vaults on a gaming ves- or air, only the portion of the space sel) cannot be exempted as passenger used for light or air, the space occupied space.

407

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00417 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.117 46 CFR Ch. I (10–1–20 Edition)

(3) A passenger space located on, or (ii) One opening at least four feet above the first deck above the upper- wide and at least five feet high in the most complete deck is exempt from clear. tonnage. To qualify as the first deck (iii) One opening at least 20 square above the uppermost complete deck, feet in the clear with a breadth in ex- the deck must be at least six inches cess of four feet and a height of not less above the uppermost complete deck at than three feet. all points along its length. (3) A compartment within an open (d) Open structures. (1) Structures structure is considered open to the that are located on or above the line of weather only when an interior bulk- the uppermost complete deck that are head of that compartment has an open- under cover (sheltered), but open to the ing or openings that meet the require- weather are exempt from tonnage as ments for end bulkheads under para- open space. The following additional graphs (d)(2)(i) and (iii) of this section. requirements apply: Other compartments within the struc- (i) If a structure is divided into com- ture are not considered open to the partments, only those compartments weather. The following additional re- which are open to the weather are ex- quirements apply: empt from tonnage under the provi- (i) For the interior compartment to sions of this section. be considered open to the weather, any compartment or series of compart- (ii) Open space cannot progress ments from which the open space pro- vertically through openings in a deck gresses must have an opening or open- within the structure. ings meeting the requirements for end (iii) A space that is outside a struc- bulkhead openings, except that the ture’s boundary bulkhead as defined in opening(s) need not be located in the § 69.53 is considered open to the weather forward or after end of the compart- provided the space is eligible to be ment. treated as an excluded space under the (ii) Open space may not progress provisions of § 69.61, regardless of from a space that is open under the whether or not the space is fitted with provisions of paragraph (d)(1)(iii) of means designed for securing cargo or this section unless the space may also stores. be considered open under another pro- (2) A structure is considered open to vision of this section. the weather when an exterior end bulk- (4) An interior or exterior opening head of the structure is open and, ex- that is temporarily closed by shifting cept as provided in paragraphs (d)(4), boards dropped into channel sections at (5), and (6) of this section, is not fitted the sides of the opening is considered with any means of closing. To be con- open to the weather if battening, sidered open to the weather, the end caulking, or gaskets of any material bulkhead must not have a coaming are not used. height of more than two feet in way of (5) An interior or exterior opening any required opening nor any perma- that is temporarily closed by cover nent obstruction within two and one- plates or boards held in place only by half feet of the opening, it must be hook bolts (see § 69.123, Figure 12) is fitted with a deck or platform that is a considered open to the weather— minimum of two and one-half feet wide (i) If hook bolts used to secure cover on the exterior side of the opening, and plates or boards are spaced at least one it must have one of the following: foot apart and hook over a stiffener in- (i) Two openings, each at least three stalled around the perimeter of the feet wide and at least four feet high in opening; the clear, one on each side of the cen- (ii) If the cover plates or boards fit terline of the structure. If the openings tightly against the weather side of the lead to two separate interior compart- bulkhead; and ments, there must be circulation of (iii) If battening, caulking, or gas- open space between the two compart- kets of any material are not used. ments via a single such opening, or se- (6) An interior or exterior opening ries of such openings, in the inter- that is temporarily closed by cover mediate bulkhead(s). plates or boards held in place only by

408

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00418 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.117

bolts and crosspieces is considered open (i) The middle line opening must be to the weather— at least four feet long in the clear and (i) If the bolts are not installed at least as wide as the after cargo through the bulkhead; hatch on the shelter deck, but not less (ii) If the bolts and crosspieces are than one-half the width of the vessel at not held in place by cleats or other at- the midpoint of the length of the open- tachments to or through the bulkhead; ing. The opening may have rounded (iii) If the cover plates or boards fit corners not exceeding a nine inch ra- tightly against the weather side of the dius. When a greater radius is required bulkhead; and by the Coast Guard or a Coast Guard (iv) If battening, caulking, or gaskets recognized classification society under of any material are not used. § 42.05–60 of this chapter, notification of (7) Notwithstanding the opening size that requirement must be submitted to requirements of paragraph (d)(2) of this the Commandant. section, a structure with its aft end en- (ii) The middle line opening must be tirely open from the under side of its located so that the distance between overhead stiffeners down to the deck, the aft edge of the middle line opening to the line of the deck, or to a coaming and the vessel’s stern is not less than not exceeding three inches in height one-twentieth of the tonnage length of and open athwartship between the in- the vessel and the distance between the board faces of the side stiffeners is con- fore edge of the opening and the ves- sidered open to the weather. The open- sel’s stem is not less than one-fifth of ing may be covered by a wire mesh the tonnage length of the vessel. screen or temporarily closed by canvas (iii) The middle line opening must secured at the top and lashed or but- not be within a structure of any type. toned in place. (iv) If the middle line opening is (8) A structure is considered open to guarded by rails or stanchions, the the weather if: rails and stanchions must not be used (i) Both sides of the structure are to secure or assist in securing a cover open and not fitted with any means of over the opening. closing other than temporary covers (v) The coaming of the middle line meeting the requirements of para- opening must not exceed one foot mean graphs (d)(4), (5), and (6) of this section; height above the shelter deck. Bolts (ii) The openings are directly across must not pass through the stiffeners or from each other, are not separated by a flanges on the coaming, nor may there bulkhead or bulkheads, and do not be any other attachments on the coa- have any permanent obstruction with- ming for fastening a cover. Portable in two and one-half feet of either open- wood covers may be fitted over the ing; and middle line opening if held in place (iii) The openings have a continuous only by lashings fitted to the under height of at least three feet, or the full side of the covers. Metal covers may be height of the structure, whichever is fitted if held in place only by hook less, and either extend the full length bolts spaced not less than 18 inches of the structure or each have an area of apart that pass through the cover and 60 square feet. hook over angle stiffeners or flanges (e) Open space between the shelter deck fitted to the outside of the coaming. and the uppermost complete deck. (1) Battening, caulking, seals, or gaskets Space that is between the shelter deck of any material may not be used in as- and the uppermost complete deck and sociation with any middle line opening that is under cover (sheltered) but open cover. to the weather is exempt from tonnage (vi) The space below the middle line when all openings in the uppermost opening must have a minimum length complete deck are provided with a wa- of four feet throughout its entire tertight means of closing. breadth and height and be in the clear (2) A space is considered ‘‘open to the at all times. weather’’ under paragraph (e)(1) of this (vii) A scupper having a five inch section when the shelter deck above minimum inside diameter and fitted the space has a middle line opening with a screw down non-return valve which conforms to the following: geared to and operated from the shelter

409

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00419 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.117 46 CFR Ch. I (10–1–20 Edition)

deck must be fitted on each side of the (3) If the space is in a vessel that is upper deck in way of the middle line subject to inspection under 46 U.S.C. opening. 3301, the space must be considered (3) When the shelter deck space for- when determining the adequacy of the ward or aft of the middle line opening vessel’s stability under 46 CFR chapter is divided by interior bulkheads, only I. those compartments with at least two (4) If the total of all water ballast openings that progress to the middle spaces to be exempted from tonnage line opening are considered ‘‘open to exceeds 30 percent of the vessel’s gross the weather’’ under paragraph (e)(1) of register tonnage (as calculated under this section. Each required opening this subpart without any allowance for must be at least three feet wide and at water ballast), a justification of the op- least four feet high in the clear, must erating conditions that require the not have a coaming height of more water ballast must be submitted to the than two feet, and must not be fitted measuring organization for approval. (except as provided in paragraphs Although a single condition may jus- (d)(4), (d)(5), and (d)(6) of this section) tify all water ballast spaces, several with any means of closing. Other com- conditions may be necessary in other partments within the shelter deck cases. However, a particular tank is space are not considered ‘‘open to the not justified by a condition if another weather’’ under paragraph (e)(1) of this tank already justified by another con- section. dition could be used as effectively. The justification must— (f) Water ballast spaces. A space, re- (i) Designate the vessel’s service; gardless of location, adapted only for (ii) Explain for what purpose under water ballast and not available for paragraph (f)(2) of this section the stores, supplies, fuel, or cargo (other water ballast is being used; than water to be used for underwater (iii) Include the capacity, tank ar- drilling, mining, and related purposes, rangement, and piping plans for the including production), upon request, vessel; may be exempt from tonnage if the fol- (iv) Include a statement certifying lowing are met: that the space will be used exclusively (1) The space must be available at all for water ballast as prescribed by this times only for water ballast that is section; piped through a system independent of (v) If water ballast is used for sta- other systems (except fire fighting and bility, describe each loading condition bilge suction systems). Pumps, pipes, and the resultant metacentric height and other equipment for loading and (GM) and include calculations; unloading water ballast must be of a (vi) If water ballast is used for im- size suitable for the efficient handling mersion or trim, describe those condi- of the water ballast within a reason- tions and include loading and trim cal- able time frame. All manholes pro- culations; viding access to a water ballast space (vii) If water ballast is used for pre- must be oval or circular and not great- loading, describe how it is used and in- er than 34 inches in diameter. Except clude strength and weight calculations; for those on a deck exposed to the and weather, the manholes may have a coa- (viii) If water ballast is used for ming not exceeding six inches in seakeeping, describe each loading con- height. Existing hatches over spaces dition, GM, period of roll, and, if speed being converted to water ballast spaces is involved, speed versus trim and draft must have a watertight cover plate and include calculations. welded to the hatch and a manhole, as (5) If the water ballast space or its described in this paragraph, fitted in use, purpose, or piping are changed, the the plating. vessel owner or operator must report (2) The primary purpose of the water the change promptly to a measurement ballast must be to afford a means of organization listed in § 69.15 for a deter- maintaining the vessel’s stability, im- mination as to whether a tonnage re- mersion, trim, pre-loading conditions, measurement is required. Changes in or seakeeping capabilities. vessel service must also be reported if

410

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00420 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.119

a water ballast justification was re- (3) Space specified in this section quired to be submitted for the vessel. may be located anywhere within the (g) Methods for measuring exempt vessel, unless otherwise specified. spaces. (1) If the exempt space is lo- (c) Anchor gear. A space below the cated within the superstructure, the line of the uppermost complete deck exempt space is measured using the occupied by the anchor gear, capstan, same procedures used to measure su- windlass, and chain locker is deduct- perstructure tonnage under § 69.113. ible. A fore peak used exclusively as (2) If the exempt space is located be- chain locker is measured by the meth- tween-deck, the space is measured od prescribed under § 69.117(g)(3). using the same procedures used for be- (d) Boatswain’s stores. A space con- tween-deck tonnage under § 69.111(c), taining oils, blocks, hawsers, rigging, except that the length of the exempt deck gear, or other boatswain’s stores space is divided into the even number for daily use is deductible. The max- of spaces most equal to the number of imum deduction allowed for vessels spaces into which the between-deck less than 100 gross register tons is one was divided. ton and, for vessels 100 gross register (3) If the exempt space is located tons or over, is one percent of the gross under-deck, the space is measured register tonnage, not to exceed 100 using the same procedures used for tons. under-deck tonnage under § 69.109, ex- (e) Chart room. A space for keeping cept that the length of the exempt charts and nautical instruments and space is divided into the even number for plotting the vessel’s course is de- of spaces most equal to the number of ductible. For a combined wheelhouse spaces into which the under-deck was and chart room, that part not exempt- divided, and the zone of influence ed as wheelhouse under § 69.117(b)(9) is method must be applied if the ordinary deductible. For small vessels in which frames upon which the under-deck the only space for a chart room is in a breadth measurements are based do not cabin or saloon, one half the space not have the same depth of frame. to exceed 1.5 tons is deductible as chart room. [CGD 87–015b, 54 FR 37657, Sept. 12, 1989; 54 (f) Donkey engine and boiler. Donkey FR 40240, Sept. 29, 1989; CGD 97–057, 62 FR engine and boiler space is deductible 51045, Sept. 30, 1997; CGD 95–028, 62 FR 51203, Sept. 30, 1997; USCG–1999–5118, 64 FR 47404, when connected with the main (non- Aug. 31, 1999; USCG–2011–0522, 81 FR 18727, cargo) pumps of the vessel, except as Mar. 31, 2016] follows: (1) If the space is within the engine § 69.119 Spaces deducted from ton- room or within the casing above the nage. engine room and if the donkey engine (a) Purpose. This section lists the re- is an auxiliary to the main propelling quirements for spaces (other than pro- machinery, the space is an engine room pelling machinery spaces under § 69.121) deduction under § 69.121(b). which, though included in calculating (2) If the space is above the line of gross register tonnage (i.e., are not ex- the uppermost complete deck and if empt under § 69.117), are deducted from the donkey engine is not an auxiliary tonnage in deriving net register ton- to the main propelling machinery, the nage. space is exempt under § 69.117(b). (b) General. (1) A deductible space (g) Spaces for the exclusive use of offi- must be used exclusively for, and be cers or crew. (1) The following spaces, reasonable in size for, its intended pur- regardless of their location (unless oth- pose. erwise noted), are deductible if not (2) When a space is larger than nec- used by passengers: essary for the safe and efficient oper- (i) Sleeping rooms. ation of deductible equipment, only the (ii) Bathrooms with a bath tub or space occupied by the equipment plus a shower but without a water closet. two foot maximum working space on (iii) Water closets below the line of each side of the equipment, if avail- the uppermost complete deck serving able, is deductible. more than one person, with or without

411

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00421 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.119 46 CFR Ch. I (10–1–20 Edition)

a bath tub or shower. Water closets, re- sewage, garbage, galley waste, trash, gardless of location, that serve only slop-oil mixture, tank cleaning residue, one person or that are accessible only bilge residue, or other waste material through a stateroom or bedroom serv- generated aboard the vessel is deduct- ing one person are considered as part of ible. the space they serve and are deductible (2) Space below the line of the upper- only if that space is deductible. most complete deck used exclusively to (iv) Clothes drying rooms. separate, clarify, purify, or otherwise (v) Drinking water filtration or dis- process waste material generated tilling plant below the line of the up- aboard the vessel is deductible. permost complete deck. (o) Passageways. A passageway or (vi) Hospitals. companionway is deductible— (vii) Mess rooms. (1) If it serves deductible spaces only; (viii) Office of the chief engineer. or (ix) Oil skin lockers. (2) If it serves deductible spaces and (x) Pantries. is also the sole means of access to one (xi) Recreation rooms. of the following non-deductible spaces: (xii) Smoking rooms. (i) Lockers of less than two tons (xiii) Galleys below the line of the each, containing medicine, linen, mops, uppermost complete deck. or other items for the free use of the (2) Shops for engineers, carpenters, crew. plumbers, or butchers and offices for clerks, pursers, or postmasters are not (ii) A ship’s office. deductible, wherever located. (iii) Spare rooms (not exceeding two) (h) Master’s cabin. The master’s sleep- used by a pilot, customs officer, reserve ing room, dressing room, bathroom, ob- engineer, or employee or agent of the servation room, reception room, sitting vessel’s owner or operator. room, water closet, and office are de- (p) Markings for deductible spaces. (1) ductible. Each space deducted under this section (i) Radio room. Spaces in which radio must be marked with the words ‘‘Cer- apparatus is installed and messages are tified lll’’ (inserting the space des- sent and received and which may pro- ignation, such as ‘‘Seaman’’, ‘‘Gener- vide off-duty operator accommodations ator’’, Office of Chief Engineer’’, ‘‘Hos- are deductible. pital’’, or ‘‘Anchor Gear’’). If a deduct- (j) Steering gear. Spaces for steering ible space berths more than one crew gear below the line of the uppermost member, the marking must indicate complete deck are deductible. the number of crew members berthed, (k) Generators. Spaces for generators such as ‘‘Certified lll Seamen’’ (in- below the line of the uppermost com- serting the number of crew). plete deck are deductible regardless of (2) The abbreviations ‘‘Cert.’’ for what space the generators serve. These ‘‘certified’’ and ‘‘W.C.’’ for ‘‘water clos- spaces may include other equipment et’’ may be used. necessary for the generator’s oper- (3) The markings must be in Roman ation. letters and Arabic numerals at least 1⁄2 (l) Pump room. Spaces below the line inch in height, must be painted in a of the uppermost complete deck con- light color on a dark background, must taining pumps that are not capable of be embossed, center-punched, carved, handling cargo and that are not fuel oil or permanently cut in a bulkhead or transfer pumps considered part of the metal plate, and must be placed in a propelling machinery under legible location over a doorway on the § 69.121(b)(2)(v) are deductible. inside of the space. A metal plate, if (m) Sail stowage. A space for stowing used, must be permanently fastened in sails on a vessel propelled only by sails place by welding, riveting, lock screws, is deductible up to two and one-half or a Coast Guard-approved bonding percent of the vessel’s gross register agent. tonnage. (q) Method for measuring deductible (n) Waste material space. (1) A tank or spaces. (1) A rectangular space must be collection space, regardless of location, measured by taking the product of its used for the carriage or collection of length, breadth, and height.

412

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00422 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.121

(2) A space with curved sides on or (ii) Framed-in space located between above the tonnage deck is measured ac- the crown and the uppermost complete cording to § 69.109. deck and used for propelling machinery (3) Space less than 15 feet in length or for the admission of light or air to may be measured by any practical propelling machinery spaces. (See method. § 69.123, figures 13 and 14.) (4) Spaces below the tonnage deck ex- (iii) Shaft tunnel space and thrust ceeding 15 feet in length and bounded block recess space. by a curved surface conforming to the (iv) Space below the uppermost com- side of the vessel must be measured by plete deck used for escape shafts or the formula used for measuring the su- trunked ladderways leading from the perstructure under § 69.113. aft end of the shaft tunnel to the deck (5) The height of a space located on a platform in the hull must be measured above. from the top of the bottom hull frames, (v) Space containing a fuel oil trans- if the platform is used only to form a fer pump located in a separate space flat surface at the bottom of the space, and not used for bunkering the vessel. if the platform is not more than one When the pump serves both ballast and foot above the top of the bottom fuel oil, only one-half of the pump’s frames, and if the space below the plat- space is considered a propelling ma- form is not usable. chinery space. (6) The height of a space is measured (vi) Spaces containing fuel oil set- through any ceiling, paneling, false tling tanks used solely for the main overhead, or other covering, to the boilers. The space must not exceed one space’s structural boundary, unless the percent of the vessel’s gross tonnage. space enclosed by the covering is avail- (vii) Spaces for engineers’ stores and able for a non-deductible use. workshops located below the upper- [CGD 87–015b, 54 FR 37657, Sept. 12, 1989; 54 most complete deck and either open to FR 40240, Sept. 29, 1989; CGD 92–058, 57 FR a propelling machinery space or sepa- 59938, Dec. 17, 1992; USCG–2011–0522, 81 FR rated from a propelling machinery 18727, Mar. 31, 2016] space only by a screen bulkhead. The space must not exceed three-quarters § 69.121 Engine room deduction. of one percent of the vessel’s gross reg- (a) General. The engine room deduc- ister tonnage. tion is either a percentage of the ves- (viii) Framed-in space located above sel’s total propelling machinery spaces the line of the uppermost complete or a percentage of the vessel’s gross deck and used for propelling machinery register tonnage. or for the admission of light or air to a (b) Propelling machinery spaces. (1) propelling machinery space, when re- Propelling machinery spaces are the quested under paragraph (d) of this sec- spaces occupied by the main propelling tion. machinery and auxiliary machinery (ix) If the propelling machinery is and spaces reasonably necessary for the operation and maintenance of the boxed-in below the tonnage deck, the machinery. Propelling machinery boxed-in space plus the spaces outside spaces do not include spaces for fuel of the boxing for the shaft, auxiliary tanks, spaces exempt from tonnage engines, and related propelling machin- under § 69.117, and spaces not used or ery. If a portion of the boxed-in space not available for use in connection extends above a platform or partial with the propelling machinery. deck that is below the uppermost com- (2) Propelling machinery spaces are— plete deck, that portion is also consid- (i) Space below the crown. The crown ered part of the propelling machinery is the top of the main space of the en- space. gine room to which the heights of the (c) Methods for measuring propelling main space are taken. The crown is ei- machinery spaces. (1) If the propelling ther the underside of a deck or, if the machinery space is bulkheaded off or is side bulkheads are sloping, the upper- not larger than necessary for the safe most point at which the slope termi- operation and maintenance of the pro- nates. (See § 69.123, figures 13 and 14.) pelling machinery, the entire space, or,

413

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00423 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.121 46 CFR Ch. I (10–1–20 Edition)

if bulkheaded off, the portion bulk- the number of parts that the tonnage headed off, is measured for the engine length under § 69.109(g) was divided. room deduction. The tonnage is then calculated by the (2) If the propelling machinery space same method used for calculating the is not bulkheaded off or is larger than under-deck tonnage in § 69.109(l). necessary for the safe operation and (9) The tonnage of a framed-in space maintenance of the propelling machin- located between the crown and the up- ery, only the space occupied by the permost complete deck and used for propelling machinery itself plus a propelling machinery or for the admis- working space of two feet, if available, sion of light or air to the propelling on each side of the propelling machin- machinery space, is the product of its ery is measured for the engine room de- length, breadth, and height, divided by duction. If the working space overlaps 100. another working space not related to (10) The tonnage of a shaft tunnel, or the propelling machinery, only one- a thrust block recess, having a flat top half of the overlapping working space is the product of its length, breadth, is included in the propelling machinery and height, divided by 100. If the shaft space. The height of the working space tunnel or thrust block recess top is not is measured as provided in paragraph flat, the space above must be cal- (c) of this section. culated by using the appropriate geo- (3) If the propelling machinery is lo- metrical formula. If the space aft of cated in more than one space, each the shaft tunnel extends from side to space must be measured separately. side of the vessel, the tonnage of the (4) If the propelling machinery is lo- space is found by the formula for meas- cated in a space with a step in the bot- uring peak tanks in § 69.109(l). tom or side lines, each stepped portion (11) The length and breadth of the of the space must be measured sepa- space for a shaft tunnel, or a thrust rately. block recess, when not cased is that (5) The length of a space under para- which is necessary for maintenance of graph (c)(1) of this section is measured the shaft. The height allowed for from the bulkhead just forward of the thrust block recess space must not ex- propelling machinery to the bulkhead ceed seven feet. The mean height al- just aft of the propelling machinery. lowed for the shaft tunnel space must The length of a space under paragraph not exceed six feet. In a multi-screw (c)(2) of this section is measured from vessel where the shaft tunnel or thrust the forward edge of the working space block recess space is open from side to to the aft edge of the working space. side, measure only the space used for (6) If the boundaries of the propelling purposes of propelling the vessel. machinery space form a rectangle, the (12) When the propelling machinery is product of the length, breadth, and on a bed at the vessel’s bottom, the height, divided by 100, is the tonnage of height of the propelling machinery the space. space is measured from the top of the (7) If the boundaries of the propelling bottom frames or floors. machinery space are continuous fair (d) Request to treat certain framed-in lines, heights are measured at the fore engine room spaces as part of a propelling and aft ends and at the center of the machinery space. (1) Under § 69.117(b)(4), space from the bottom frames, floors, framed-in spaces located above the line or tank top of a double bottom up to of the uppermost complete deck and the line of the crown. A breadth is used for propelling machinery or for measured at half-height of each height. admitting light or air to a propelling The product of the length, mean machinery space are exempt from in- breadth, and mean height, divided by clusion in tonnage. However, upon 100, is the tonnage of the space. written request to a measurement or- (8) If the propelling machinery space ganization listed in § 69.15, the vessel is in the aft end of the hull, extends owner may elect to have these spaces from side to side of the hull, and has a included in calculating the gross reg- continuous bottom line, the length of ister tonnage, then deducted from the the space is divided into the even num- gross register tonnage as propelling ber of equal parts most nearly equal to machinery spaces under paragraph

414

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00424 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.123

(b)(2)(viii) of this section when calcu- (ii) If the total propelling machinery lating the net register tonnage. space is more than 13 but less than 20 (2) The framed-in space must be safe, percent of the vessel’s gross register seaworthy, and used only for propelling tonnage, deduct 32 percent of the ves- machinery or for the admission of light sel’s gross register tonnage; or or air to the propelling machinery (iii) If the total propelling machinery space. The length of the space must not space is 20 percent or more of the ves- exceed the length of the propelling ma- sel’s gross register tonnage, deduct ei- chinery space and the breadth must ther 32 percent of the vessel’s gross not exceed one-half of the extreme in- register tonnage or 1.75 times the total side midship breadth of the vessel. Por- propelling machinery space, whichever tions of the framed-in space that are the vessel owner elects. plated over are not included in the pro- (3) For vessels propelled in whole or pelling machinery space. in part by paddle-wheel— (3) To exercise the option in para- (i) If the total propelling machinery graph (d)(1) of this section, all of the space is 20 percent or less of the ves- framed-in space need not be treated as sel’s gross register tonnage, deduct 37⁄20 propelling machinery space, but only times the total propelling machinery that portion required to entitle the space; vessel to have 32 percent of its gross (ii) If the total propelling machinery register tonnage deducted as an engine space is more than 20 but less than 30 room deduction under paragraph (e) of percent of the vessel’s gross register this section. tonnage, deduct 37 percent of the ves- (e) Calculating the engine room deduc- sel’s gross register tonnage; or tion. (1) The engine room deduction is (iii) If the total propelling machinery based on a percentage of the vessel’s space is 30 percent or more of the ves- gross register tonnage or a percentage sel’s gross register tonnage, deduct ei- of the total propelling machinery ther 37 percent of the vessel’s gross space. register tonnage or 1.5 times the total (2) For vessels propelled in whole or propelling machinery space, whichever in part by screw— the vessel owner elects. (i) If the total propelling machinery [CGD 87–015b, 54 FR 37657, Sept. 12, 1989; 54 space is 13 percent or less of the ves- FR 40240, Sept. 29, 1989; USCG–2011–0522, 81 sel’s gross register tonnage, deduct 32⁄13 FR 18728, Mar. 31, 2016] times the total propelling machinery space; § 69.123 Figures.

415

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00425 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.123 46 CFR Ch. I (10–1–20 Edition)

416

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00426 Fmt 8010 Sfmt 8006 Y:\SGML\250206.XXX 250206 ER31MR16.003 Coast Guard, Dept. of Homeland Security § 69.123

417

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00427 Fmt 8010 Sfmt 8006 Y:\SGML\250206.XXX 250206 ER31MR16.004 § 69.123 46 CFR Ch. I (10–1–20 Edition)

418

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00428 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 EC01FE91.044 Coast Guard, Dept. of Homeland Security § 69.161

[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as Line of the uppermost complete deck amended by USCG–2011–0522, 81 FR 18728, means a longitudinal line at the under- Mar. 31, 2016] side of the uppermost complete deck or, if that deck is stepped, the longitu- Subpart D —Dual Regulatory dinal line of the underside of the lowest Measurements System portion of that deck parallel with the upper portions of that deck. § 69.151 Purpose. Net register tonnage is defined in This subpart prescribes measurement § 69.161(b). requirements for the assignment of ei- Second deck means the next deck ther one gross and one net register ton- below the uppermost complete deck nage or two gross and two net register that meets the following: tonnages to vessels under this subpart. (a) Is continuous athwartships and in a fore-and-aft direction at least be- [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as tween peak bulkheads, even though the amended by USCG–2011–0522, 81 FR 18731, deck may have interruptions or open- Mar. 31, 2016] ings due to propelling machinery § 69.153 Application of other laws. spaces, to hatch and ventilation trunks not extending longitudinally com- (a) If a vessel is assigned two gross pletely between main transverse bulk- register tonnages under § 69.175(b), the heads, to ladder and stairway openings, higher gross register tonnage is the to chain lockers, or to cofferdams. tonnage used when applying inspec- (b) Is fitted as an integral and perma- tion, manning, and load line laws and nent part of the vessel. regulations to the vessel. (c) Has proper covers to all main (b) Tonnage marks are not to be con- hatchways. strued as additional load line marks. (d) Does not have steps the total of Whether or not a tonnage mark is sub- which exceed 48 inches in height. merged under § 69.171 has no effect on Tonnage deck means, for a vessel with the applicability of load line laws and only one deck, the uppermost complete regulations. deck and, for a vessel with a second [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as deck, the second deck. amended by USCG–2011–0522, 81 FR 18731, Tonnage mark means the line de- Mar. 31, 2016] scribed in § 69.177(a)(2). § 69.155 Measurement requirements. [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as amended by USCG–2011–0522, 81 FR 18731, Except as otherwise required by this Mar. 31, 2016] subpart, the measurement require- ments under the Standard Regulatory § 69.159 Application for measurement Measurement System in subpart C of services. this part apply to the measurement of Applications for measurement serv- vessels under this subpart. ices under this subpart must include [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as the application information and plans amended by USCG–2011–0522, 81 FR 18731, required under § 69.105. The application Mar. 31, 2016] must indicate whether a line for fresh and tropical waters is requested under § 69.157 Definitions. § 69.177(b) and, for vessels with more Terms used in this subpart that are than one deck, indicate whether one or defined in § 69.103 have the same mean- two sets of tonnages are desired under ing as in § 69.103, except the terms list- § 69.175. ed below. As used in this subpart,— [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as Gross register tonnage is defined in amended by USCG–2011–0522, 81 FR 18731, § 69.161(a). Mar. 31, 2016] Line for fresh and tropical waters means the line described in § 69.161 Gross and net register ton- § 69.177(b)(2). nages. Line of the second deck means the line (a) Gross register tonnage means the described in § 69.181. tonnage of a vessel, less certain spaces

419

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00429 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.163 46 CFR Ch. I (10–1–20 Edition)

exempt under § 69.169, and is the sum of deck are not included in the super- the following: structure tonnage. (1) Under-deck tonnage (§ 69.163). [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as (2) Between-deck tonnage (§ 69.165) amended by USCG–2011–0522, 81 FR 18731, (3) Superstructure tonnage (§ 69.167) Mar. 31, 2016] (4) Excess hatchway tonnage (§ 69.115) (5) Tonnage of framed-in propelling § 69.169 Spaces exempt from inclusion machinery spaces included in calcu- in tonnage. lating gross register tonnage The tonnage of the following spaces (§ 69.121(d)(1)). is exempt from inclusion in tonnage: (b) Net register tonnage means gross (a) Spaces listed in § 69.117(b) when lo- register tonnage less deductions under cated within the superstructure. § 69.119 and § 69.121. (b) Spaces listed in § 69.117(c)(1) (c) The authorized measurement or- through (c)(3) when located above, but ganization must issue a U.S. Tonnage not on, the uppermost complete deck. Certificate as evidence of a vessel’s (c) Spaces listed in § 69.117(f), regard- measurement under this subpart, less of location. which must also indicate the vessel’s (d) Spaces available for carrying dry measurement under the Convention cargo and stores when located on or Measurement System in subpart B of above the uppermost complete deck. this part, if applicable. There is no re- (e) When a vessel is assigned a ton- quirement to maintain the U.S. Ton- nage mark and the tonnage mark is nage Certificate on board the vessel. not submerged,— [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as (1) Spaces listed in § 69.117(b) when lo- amended by USCG–2011–0522, 81 FR 18731, cated between the uppermost complete Mar. 31, 2016] deck and the second deck; (2) Spaces listed in § 69.117(c)(1) § 69.163 Under-deck tonnage. through (c)(3) when located on the up- The under-deck tonnage provisions in permost complete deck; and § 69.109 apply; except that, under this (3) Spaces available for carrying dry subpart, spaces between the line of the cargo and stores when located between tonnage deck and the tonnage deck the uppermost complete deck and the itself due to a stepped tonnage deck are second deck. included in under-deck tonnage. [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 92–058, 57 FR 59938, Dec. 17, amended by USCG–2011–0522, 81 FR 18731, 1992; USCG–2011–0522, 81 FR 18731, Mar. 31, Mar. 31, 2016] 2016] ]

§ 69.165 Between-deck tonnage. § 69.171 When the tonnage mark is The between-deck tonnage provisions considered submerged. in § 69.111 apply, except that, under this For the purpose of this subpart, a subpart, between-deck space extends tonnage mark is considered submerged from the tonnage deck to the upper- when— most complete deck, rather than from (a) In salt or brackish water, the the line of the tonnage deck to the line upper edge of the tonnage mark is sub- of the uppermost complete deck. merged; and [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as (b) In fresh or tropical water, the amended by USCG–2011–0522, 81 FR 18731, upper edge of the line for fresh and Mar. 31, 2016] tropical waters is submerged.

§ 69.167 Superstructure tonnage. § 69.173 Register Tonnage assignments The superstructure tonnage provi- for vessels with only one deck. sions in § 69.113 apply; except that, A vessel without a second deck is as- under this subpart, spaces between the signed only one gross and one net reg- line of the uppermost complete deck ister tonnage. In calculating the gross and the uppermost complete deck itself register tonnage, only the exemptions due to a stepped uppermost complete in § 69.169 (a) through (d) are allowed.

420

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00430 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.177

Markings under § 69.177 are not per- § 69.177 Markings. mitted on these vessels. (a) Tonnage mark. (1) All vessels with [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as a second deck that are measured under amended by USCG–2011–0522, 81 FR 18731, this subpart must have, on each side of Mar. 31, 2016] the vessel, a tonnage mark, and an in- § 69.175 Tonnage assignments for ves- verted triangle identifying the tonnage sels with a second deck. mark, as described and located under this section. (See the figure in (a) At the option of the vessel owner, § 69.183(a).) Vessels with only one deck a vessel having a second deck is as- are not assigned markings under this signed either two gross and two net section. register tonnages or one gross and one net register tonnage corresponding to (2) The tonnage mark is a horizontal the lower gross and net register ton- line 15 inches long and one inch wide. nages. The tonnage mark must be designated (b) If two gross and two net register by a welded bead or other permanent tonnages are assigned, the higher ton- mark 15 inches long placed along the nages (i.e. those based only on exemp- top edge of the tonnage mark. tions under § 69.169 (a) through (d)) are (3) Above the tonnage mark is placed applicable when the upper edge of the an inverted equilateral triangle, each tonnage mark is submerged and the side of which is 12 inches long and one lower tonnages (i.e. those based only inch wide, with its apex touching the on all exemptions under § 69.169) are ap- upper edge of the center of the tonnage plicable when the upper edge of the mark. tonnage mark is not submerged. (4) If the vessel has a load line mark, (c) If only the low gross and low net the longitudinal location of the center register tonnages, as calculated under of the tonnage mark must be between paragraph (b) of this section, are as- 21 inches and six feet six inches aft of signed, these tonnages are applicable the vertical centerline of the load line at all times. On these vessels, a load ring. (See the figures in § 69.183 (b) and line must be assigned at a level below (c).) If the vessel does not have a load the line of the second deck, and the line mark, the center of the tonnage tonnage mark must be located in ac- mark must be located amidships. cordance with § 69.177(a)(6) at the level (5) Except as under paragraph (a)(6) of the uppermost part of the load line of this section, the upper edge of the grid. tonnage mark must be located below [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as the line of the second deck at the dis- amended by USCG–2011–0522, 81 FR 18731, tance indicated in Table 69.177(a)(5). Mar. 31, 2016] (See the figure in § 69.183(b).)

TABLE 69.177(a)(5)—MINIMUM DISTANCE IN INCHES BETWEEN THE TONNAGE MARK AND THE LINE OF THE SECOND DECK

L divided by D L (in feet) 12 13 14 15 16 17 18 19 20

220 and under ...... 2 .0 2 .0 2 .0 2 .0 2 .0 2 .0 2 .0 2 .0 2 .0 230 ...... 3 .2 2 .0 2 .0 2 .0 2 .0 2 .0 2 .0 2 .0 2 .0 240 ...... 4 .7 2 .0 2 .0 2 .0 2 .0 2 .0 2 .0 2 .0 2 .0 250 ...... 6 .3 3 .3 2 .0 2 .0 2 .0 2 .0 2 .0 2 .0 2 .0 260 ...... 8 .0 4 .8 2 .1 2 .0 2 .0 2 .0 2 .0 2 .0 2 .0 270 ...... 9 .9 6 .4 3 .5 2 .0 2 .0 2 .0 2 .0 2 .0 2 .0 280 ...... 11 .8 8 .1 4 .9 2 .1 2 .0 2 .0 2 .0 2 .0 2 .0 290 ...... 13 .9 9 .9 6 .5 3 .5 2 .0 2 .0 2 .0 2 .0 2 .0 300 ...... 16 .0 11.7 8.1 4.9 2.1 2.0 2.0 2.0 2.0 310 ...... 18 .3 13.7 9.8 6.4 3.5 2.0 2.0 2.0 2.0 320 ...... 20 .7 15.8 11.7 8 .1 4 .9 2 .1 2 .0 2 .0 2 .0 330 ...... 23 .2 18.0 13.6 9 .8 6 .4 3 .5 2 .0 2 .0 2 .0 340 ...... 25 .9 20.4 15.7 11 .6 8 .1 4 .9 2 .1 2 .0 2 .0 350 ...... 28 .7 22.9 17.9 13 .6 9 .8 6 .5 3 .6 2 .0 2 .0 360 ...... 31 .7 25.5 20.2 15 .7 11 .7 8 .2 5 .0 2 .2 2 .0 370 ...... 34 .7 28.3 22.7 17 .9 13 .6 9 .9 6 .6 3 .7 2 .0 380 ...... 38 .0 31.1 25.3 20 .2 15 .7 11 .8 8 .3 5 .2 2 .4

421

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00431 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.177 46 CFR Ch. I (10–1–20 Edition)

TABLE 69.177(a)(5)—MINIMUM DISTANCE IN INCHES BETWEEN THE TONNAGE MARK AND THE LINE OF THE SECOND DECK—Continued

L divided by D L (in feet) 12 13 14 15 16 17 18 19 20

390 ...... 41 .3 34.1 27.9 22 .6 17 .9 13 .8 10.1 6.8 3.8 400 ...... 44 .8 37.2 30.7 25 .0 20 .1 15 .8 11.9 8.4 5.3 410 ...... 48 .2 40.3 33.5 27 .7 22 .6 18 .1 14.0 10.4 7 .2 420 ...... 51 .5 43.4 36.4 30 .4 25 .2 20 .6 16.4 12.7 9 .7 430 ...... 54 .8 46.5 39.4 33 .3 27 .9 23 .2 19.0 15.2 11 .8 440 ...... 58 .4 49.9 42.6 36 .4 30 .9 26 .0 21.7 17.8 14 .4 450 ...... 62 .1 53.4 46.0 39 .6 33 .9 29 .0 24.6 20.6 17 .1 460 ...... 65 .9 57.0 49.5 42 .9 37 .1 32 .1 27.6 23.5 19 .9 470 ...... 69 .8 60.7 53.0 46 .3 40 .4 35 .2 30.6 26.5 22 .8 480 ...... 73 .7 64.4 56.5 49 .7 43 .7 38 .4 33.7 29.5 25 .7 490 ...... 77 .5 68.1 60.0 53 .0 46 .9 41 .5 36.7 32.4 28 .5 500 ...... 81 .2 71.6 63.4 56 .2 50 .0 44 .5 39.6 35.2 31 .2 510 ...... 84 .9 75.1 66.7 59 .4 53 .0 47 .4 42.4 37.9 33 .9 520 ...... 88 .4 78.4 69.9 62 .4 55 .9 50 .2 45.1 40.5 36 .4 530 ...... 91 .8 81.6 72.9 65 .3 58 .7 52 .9 47.7 43.0 38 .8 540 ...... 95 .2 84.8 75.9 68 .1 61 .4 55 .5 50.2 45.4 41 .2 550 ...... 98 .4 87.8 78.8 70 .9 64 .0 58 .0 52.6 47.8 43 .4 560 ...... 101.6 90.8 81 .6 73 .6 66 .6 60.5 55.0 50 .1 45 .6 570 ...... 104.8 93.8 84 .4 76 .3 69 .2 62.9 57.3 52 .3 47 .8 580 ...... 107.9 96.8 87 .2 78 .9 71 .7 65.3 59.6 54 .5 49 .9 590 ...... 111.0 99.7 90 .0 81 .5 74 .2 67.7 61.9 56 .7 52 .0 600 ...... 114.0 102.5 92 .6 84 .0 76.5 69.9 64 .0 58 .8 54 .0 610 ...... 117.0 105.3 95 .2 86 .5 78.9 72.1 66 .2 60 .8 56 .0 620 ...... 120.0 108.0 97 .8 88 .9 81.2 74.4 68 .3 62 .8 58 .0 630 ...... 122.9 110.7 100 .4 91.3 83.5 76 .6 70 .4 64 .8 59.9 640 ...... 125.7 113.4 102 .9 93.7 85.8 78 .7 72 .4 66 .8 61.7 650 ...... 128.6 116.1 105 .4 96.1 88.0 80 .8 74 .4 68 .7 63.6 660 ...... 131.4 118.7 107 .8 98.3 90.1 82 .8 76 .3 70 .6 65.3 670 ...... 134.2 121.2 110 .2 100.6 92 .2 84 .8 78 .3 72.4 67.1 680 ...... 136.9 123.8 112 .8 102.9 94 .3 86 .8 80 .2 74.2 68.9 690 ...... 139.6 126.3 115 .0 105.1 96 .4 88 .8 82 .1 76.0 70.6 700 ...... 142.3 128.8 117 .3 107.3 98 .5 90 .8 83 .9 77.8 72.3 710 ...... 144.9 131.3 119 .6 109.4 100 .5 92 .7 85.7 79.5 73 .9 720 ...... 147.5 133.7 121 .8 111.5 102 .5 94 .6 87.5 81.2 75 .5 730 ...... 150.1 136.1 124 .0 113.6 104 .5 96 .5 89.3 82.9 77 .1 740 ...... 152.7 138.5 126 .2 115.7 106 .5 98 .3 91.5 84.5 78 .7 750 ...... 155.3 140.8 128 .5 117.8 108 .4 100.1 92,8 86 .1 80 .3 760 ...... 157.8 143.1 130 .6 119.7 110 .3 101.9 94.4 87 .8 81 .7 770 ...... 160.2 145.4 132 .7 121.7 112 .1 103.6 96.0 89 .3 83 .2 780 ...... 162.6 147.6 134 .8 123.7 113 .9 105.3 97.6 90 .8 84 .7 790 ...... 165.1 149.9 136 .9 125.6 115 .7 107.0 99.2 92 .3 86 .1 800 ...... 167.5 152.1 138 .9 127.4 117 .4 108.6 100.8 93 .8 87 .4 L = the length in feet of the line of the second deck at the centerline of the vessel from the inner surface of the frames at the vessel’s stem to the inner surface of the frames at the vessel’s stern. D = The vertical distance in feet from the top of the flat keel of the vessel to the line of the second deck. EXAMPLE (1) For a vessel in which L = 450 feet and L/D = 15 feet, read down from the L/D column ‘‘15’’ and to the right on the column ‘‘450’’ to where the two columns intersect at 39.6. The tonnage mark must be located 39.6 inches below the line of the second deck. EXAMPLE (2) If L or L/D is an intermediate number, the distance ‘‘a’’ between the tonnage mark and the line of the second deck must be obtained by linear interpolation. For a vessel in which L = 424.80 feet and L/D = 15.17: (i) Vessels assigned only one gross L Table L/D Actual L/ Table L/D = 15 D = 15.17 = 16 and one net register tonnage under Table 420 ...... 30.4 ...... 25.2 § 69.175(c). Actual 424.80 ...... r a s (ii) Vessels for which a load line as- Table 430 ...... 33.3 ...... 27.9 signing authority certifies that the Interpolation: vessel’s load line mark was located as r = 30.4 + 0.48 (33.3¥30.4) = 31.79 s = 25.2 + 0.48 (27.9¥25.2) = 26.50 though the second deck were the a = r¥0.17 (r¥s) = 31.79¥0.17 (31.79¥26.50) = 30.89 freeboard deck. inches (b) Line for fresh and tropical waters. (6) For the following vessels with a (1) Except as under paragraph (b)(4) of load line mark, the upper edge of the this section, a horizontal line for fresh tonnage mark must be located at the and tropical waters may be assigned at level of the uppermost part of the load the vessel owner’s request. line grid:

422

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00432 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 Coast Guard, Dept. of Homeland Security § 69.181

(2) The line must be nine inches long ground or a dark color on a light back- and one inch wide and located above ground. and to the left of the tonnage mark at [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as a distance equal to one forty-eighth of amended by USCG–2011–0522, 81 FR 18731, the distance from the top of the flat Mar. 31, 2016] keel to the tonnage mark. The tonnage mark and the line for fresh and trop- § 69.179 Certification of markings. ical waters must be connected by a (a) Before a certificate of measure- vertical line one inch wide. (See the ment is issued for a vessel requiring a figure in § 69.183(a).) tonnage mark, a certification by a (3) The line for fresh and tropical measurement organization under § 69.15 waters must be designated by a welded that all markings meet the require- bead or other permanent mark nine ments of this subpart is required. inches long placed along the upper edge (b) The Coast Guard, at any time, of the line. may verify markings under this sub- (4) For vessels with a load line mark, part. if the load line assigning authority cer- § 69.181 Locating the line of the second tifies that the load line mark was lo- deck. cated as though the second deck were (a) If the second deck is not stepped, the freeboard deck, a line for fresh and the line of the second deck is the longi- tropical waters must not be placed on tudinal line of the underside of the sec- the vessel. ond deck at the side of the hull. (c) Freeboard deck mark. A vessel as- (b) If the second deck is stepped (as signed two gross and two net register in the examples following this para- tonnages which has more than one graph), the line of the second deck is a deck and no load line mark assigned longitudinal line extended parallel to must have a mark on each side of the each portion of the second deck and lo- vessel with the same dimensions and cated at the height of the underside of location as the freeboard deck line the amidships portion of the second mark under § 42.13–20 of this chapter, deck at the side of the hull— except that the mark must be located (1) Plus, for each stepped portion of directly above the tonnage mark. the second deck higher than the second (d) The line of the second deck. The deck at amidships, a distance equal to line of the second deck must not be the length of the stepped portion di- marked on the side of the vessel, ex- vided by the total length of the second cept in the case of a freeboard deck deck times the height that the step is line mark placed at the location of the above the height of the amidship por- tion of the second deck; and second deck if the second deck is the (2) Minus, for each stepped portion of actual freeboard deck for purposes of a the second deck lower than the second vessel’s load line assignment. deck at amidships, a distance equal to (e) Color of markings. All markings the length of the stepped portion di- under this section must be maintained vided by the total length of the second in either a light color on a dark back- deck times the height that the amidship portion of the second deck is above the height of the step.

423

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00433 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.183 46 CFR Ch. I (10–1–20 Edition)

[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as § 69.183 Figures. amended by USCG–2011–0522, 81 FR 18731, Mar. 31, 2016] (a) Tonnage mark with an equilateral triangle and a line for fresh and tropical waters.

424

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00434 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 ER31MR16.005 Coast Guard, Dept. of Homeland Security § 69.183

W=1⁄48 of the distance from the top of the flat (b) Tonnage mark location if the load keel to the tonnage mark. (See line mark is not placed as though the sec- § 69.177(b)(2).) ond deck were the freeboard deck.

k = a distance between 21 inches and six feet (c)—Tonnage mark location if the load six inches. line mark is placed as though the second a = distance derived from Table 69.177(a)(5). deck were the freeboard deck.

425

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00435 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 ER31MR16.006 ER31MR16.007 § 69.201 46 CFR Ch. I (10–1–20 Edition)

k = a distance between 21 inches and six feet Overall depth means the vertical dis- six inches. tance taken at or near midships from a a = the distance between the line of the sec- line drawn horizontally through the ond deck and the uppermost part of the uppermost edges of the skin (outside load line grid. planking or plating) at the sides of the [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as hull (excluding the cap rail, trunks, amended by USCG–2011–0522, 81 FR 18732, cabins, and deckhouses) to the out- Mar. 31, 2016] board face of the bottom skin of the hull, excluding the keel. For a vessel Subpart E—Simplified Regulatory that is designed for sailing and has a Measurement System keel faired to the hull, the keel is in- cluded in ‘‘overall depth’’ if the dis- § 69.201 Purpose. tance to the bottom skin of the hull This subpart prescribes the proce- cannot be determined reasonably. dures for measuring a vessel under the Overall length means the horizontal Simplified Regulatory Measurement distance between the outboard side of System described in 46 U.S.C. chapter the foremost part of the stem and the 145, subchapter III. outboard side of the aftermost part of [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as the stern, excluding rudders, outboard amended by USCG–2011–0522, 81 FR 18732, motor brackets, and other similar fit- Mar. 31, 2016] tings and attachments. Registered breadth means— § 69.203 Definitions. (a) For a single-hull vessel, the ves- As used in this subpart and in Coast sel’s overall breadth; and Guard Form CG–5397 under § 69.205— (b) For a multi-hull vessel, the hori- Overall breadth means the horizontal zontal distance taken at the widest distance taken at the widest part of part of the complete vessel between the the hull, excluding rub rails, from the outboard side of the skin (outside outboard side of the skin (outside planking or plating) on the planking or plating) on one side of the outboardmost side of one of the hull to the outboard side of the skin on outboardmost hulls to the outboard the other side of the hull. side of the skin on the outboardmost

426

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00436 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 ER31MR16.008 Coast Guard, Dept. of Homeland Security § 69.209

side of the other outboardmost hull, (6) Location of any propelling ma- excluding rubrails. chinery (e.g., inside or outside of the Registered depth means— hull). (a) For a single-hull vessel, the ves- (7) Dimensions of the principal deck sel’s overall depth; and structure, if its volume exceeds the (b) For a multi-hull vessel, the over- volume of the hull. all depth of the deepest hull. (c) At the vessel owner’s option, a Registered length means— Builder’s Certification and First Trans- (a) For a single-hull vessel, the ves- fer of Title (form CG–1261), which in- sel’s overall length; and cludes the same information specified (b) For a multi-hull vessel, the hori- in paragraph (b) of this section may be zontal distance between the outboard submitted to the National Vessel Docu- side of the foremost part of the stem of mentation Center instead of the Appli- the foremost hull and the outboard side cation for Simplified Measurement for of the aftermost part of the stern of a vessel that is documented, or in- the aftermost hull, excluding fittings tended to be documented, as a vessel of or attachments. the United States under part 67 of this Vessel designed for sailing means a ves- chapter. sel which has the fine lines of a sailing craft and is capable of being propelled [USCG–2011–0522, 81 FR 18733, Mar. 31, 2016] by sail, whether or not the vessel is equipped with an auxiliary motor, a § 69.207 Measurements. decorative sail, or a sail designed only (a) All lengths and depths must be to steady the vessel. measured in a vertical plane at center- [CGD 87–015b, 54 FR 37657, Sept. 12, 1989; 54 line and breadths must be measured in FR 40240, Sept. 29, 1989; USCG–1999–6216, 64 a line at right angles to that plane. All FR 53225, Oct. 1, 1999] dimensions must be expressed in feet and inches to the nearest inch or in § 69.205 Application for measurement feet and tenths of a foot to the nearest services. tenth of a foot. (a) Except as noted under paragraph (b) For a multi-hull vessel, each hull (c) of this section, to apply for meas- must be measured separately for over- urement under this subpart, the vessel all length, breadth, and depth and the owner must complete an Application vessel as a whole must be measured for for Simplified Measurement (form CG– registered length, breadth, and depth. 5397). If the vessel is documented, or in- (c) The Coast Guard may verify di- tended to be documented, as a vessel of mensions of vessels measured under the United States under part 67 of this this subpart. chapter, the vessel owner must submit the application form to the National [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as Vessel Documentation Center. Other- amended by USCG–2011–0522, 81 FR 18734, wise, the form is not further processed, Mar. 31, 2016] but may be retained, at the vessel own- er’s option, as evidence of the tonnage § 69.209 Gross and net register ton- nages. measurement under this part. (b) The Application for Simplified (a) Gross register tonnage. (1) Except Measurement (form CG–5397) must in- as in paragraphs (a)(2) through (a)(5) of clude the following information: this section, the gross register tonnage (1) Vessel’s name and number (e.g., of a vessel designed for sailing is one- official number, International Mari- half of the product of its overall time Organization (IMO) number, or length, overall breadth, and overall Coast Guard number). depth (LBD) divided by one hundred (2) Vessel hull identification number (i.e., 0.50 LBD/100), and the gross reg- or other number assigned by builder. ister tonnage of a vessel not designed (3) Hull material. for sailing is 0.67 LBD/100. (4) Hull shape. (2) The gross tonnage of a vessel with (5) Overall length, breadth, and depth a hull that approximates in shape a of vessel and each of the vessel’s indi- rectangular geometric solid (barge- vidual hulls. shape) is 0.84 LBD/100.

427

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00437 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206 § 69.211 46 CFR Ch. I (10–1–20 Edition)

(3) The gross tonnage of a multi-hull (2) For a vessel having no propelling vessel is the sum of all the hulls as cal- machinery in its hull, the net register culated under this section. tonnage is the same as its gross reg- (4) If the volume of the principal ister tonnage. deck structure of a vessel is as large as, (c) Certification of measurement. For a or larger than, the volume of the ves- vessel that is documented as a vessel of sel’s hull, the volume of the principal the United States under part 67 of this deck structure in tons of 100 cubic feet chapter, the vessel’s Certificate of Doc- is added to the tonnage of the hull to umentation serves as evidence of meas- establish the vessel’s gross tonnage. urement under this subpart. For all The volume of the principal deck struc- other vessels, a completed Application ture of a vessel is determined by the for Simplified Measurement (form CG– product of its average dimensions. 5397) serves as evidence of the tonnage (5) If the overall depth of a vessel de- measurement under this part. signed for sailing includes the keel, [CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as only 75 percent of that depth is used for amended by CGD 97–057, 62 FR 51045, Sept. 30, gross tonnage calculations. 1997; USCG–2011–0522, 81 FR 18734, Mar. 31, (b) Net register tonnage. (1) For a ves- 2016] sel having propelling machinery in its hull— § 69.211 Treatment of novel type ves- sels. (i) The net register tonnage is 90 per- cent of its gross register tonnage, if it Refer questions regarding the appli- is a vessel designed for sailing; or cation of the tonnage measurement rules under this subpart to novel type (ii) The net register tonnage is 80 per- vessels to the Commandant. cent of its gross register tonnage, if it is not a vessel designed for sailing. [USCG–2011–0522, 81 FR 18734, Mar. 31, 2016]

428

VerDate Sep<11>2014 10:37 May 13, 2021 Jkt 250206 PO 00000 Frm 00438 Fmt 8010 Sfmt 8010 Y:\SGML\250206.XXX 250206